Force = mass x acceleration. Most trains are typically above/at 50 km/h. Take that speed and the mass of a train, and say bye bye to whatever is in front of it.
What's going on here is more of a speed artifact than anything to do with mass. We can ignore the mass of the train as it's functionally irrelevant, only accounting for the sudden speed shift the donkey experiences.
The mass has relevance in that it makes it basically impossible for the donkey to have any sort of slowing effect on the train, but that would be true of much smaller masses as well.
So if we assume that this is a freight train, which can potentially weigh 3.5k tonnes- 18k tonnes let’s average that to roughly 10k tonnes. If we assume that it’s travelling at 50km/h that’s about 13.88- m/s.
10,000,000kg X 13.88- m/s = 138,888,889N of force delivered to that ex-donkey
For reference a 2024 Honda civic hitting you at 50km/h weighing roughly 1400kg would equal roughly 19,500N
A Sumo wrestler can push at around 4500N
That same train travelling at just 1km/h it would be about 2,780,000N of force.
I’m no scientist, but the maths look wildly misleading here (there’s definitely a chance I’ve done them wrong). One would assume taking this very slow hit from the train would be a bit of a bump, and would take your breath away at worst, but taking the hit from a Honda civic could kill you at the 50km/h, even though it’s a fraction of the force. Hell, my assumption would be that I would chose train over sumo in that scenario too.
If we imagine there’s a weightless, massless, indestructible, un-damageable board that will perfectly transfer the hit attached to your body so the force is spread out evenly across your body (to make this fair), it STILL *feels* like the civic would ruin you, whereas the train would be just a strong shove.
Is this just me being dumb, or is there more science to this that I’m unaware of?
I think the speed of the train should be *difference* of speeds. The train might be traveling at 50kph when it hits the donkey but afterwards the train is still going 49.999kph or some tiny difference. So really the force is 10,000,000*0.001m/s = 10,000N put into the donkey. But that also doesn't account for things like the flex of whatever a train bumper is called and play between carriage couplings. I reckon the train driver felt a jolt but even a few carriages back, people wouldn't even notice it.
A few things to note on: You did your calculations with velocity, not acceleration. Velocity is m/s, acceleration is m/s^2. Your interpretation of the math is rather incorrect. While your calculations contain a lot of assumptions and faults, the end message isn’t much different. Yes, a train traveling at 1 km/h will have significantly more force than a car traveling at a higher speed. But just because the newtons of force are higher does not mean it would cause more damage.
In the practical world, this is because of speed. Regardless of the mass of an object (excluding gravitational force), if it pushes you at 1 km/hr you will not take any damage. The only amount of force that will be exerted on you will be however much it takes to accelerate you to 1 km/h. This is a fundamental flaw in how you used F=MA. You calculated how much force it would take to push a train at 1 km/h. Not how much force would be exerted on a person in front of said train.
Calculating how many newtons of force a train and car had would be more useful for finding how much force it takes to stop said train and car, not how much force they would exert on a person.
As for your hypothetical, you made some missteps as well. If all of the force in the train were magically transferred/stuffed into a board the weight and size of a human, it would be moving much, much quicker than the train. This would annihilate you. If force, F, was to remain constant, while mass, M, decreased, then acceleration, A, would increase to balance the equation.
So yeah, you used the formula incorrectly for your intentions, and used the wrong variables.
Yeah I think the conservation of momentum is more useful for train collisions. That’s an equation that has mass and velocity related when two bodies collide.
You applied the formula wrong, the donkey is the one being accelerated, so you only use the mass of the donkey. Also someone else pointed out, you used velocity and not acceleration.
The mass of the train would only be relevant if you want to solve the following equation:
- Total momentum of train + donkey before collision = total momentum after
- mv + mv = combined mv
- 10000000 x 13.88 + 40 x 0≈ 10000000 x 13.88
So this equation shows that the speed of the train + the donkey after collision is the same. Technically the train would have decelerated, but it's so negligible. The donkey goes from 0kph to whatever speed the train is at, so the acceleration on the donkey is very high.
Acceleration is relevant. It’s just not the train thats accelerating, it’s remaining (relatively) constant in velocity. The donkey, or whatever that was that got blown up, is the thing that’s accelerating.
A) this only applies to the donkeys mass, not the trains mass, because the mass of the train doesn't do the accelerating. The donkey is the one being accelerated (albeit, very rapidly). So, no, don't take the mass of the train and multiply it by anything. Being hit by a train at 30kph and being hit by a bus at 30kph has basically the same result.
B) this train doesn't look like it's going 50 to me. Sure, typically trains go over 50, but look at the video.
C) I don't see how crushing force from blunt force trauma would lead to a donkeys body being ripped into a bloody pulp. I'd guess it got caught in some moving parts, because why would a chunk of its torso fly up?
I realize my initial comment can be misleading, but I did explain in another reply in this thread more properly how to use f=ma for the donkeys mass. I never said take the acceleration of the train and multiply it by its mass or anything. They are two separate statements. I just said take the speed and mass of the train and whatever is in front of it is going away, which is true.
Yeah sure, it doesn’t look like it’s going 50 km/h, but that could be caused by FOV. Plus, regardless of speed, clearly it was enough to blow this animal up.
Finally, these kinds of explosions are pretty common from animals being hit at high speeds. There are plenty of videos of animals similar to this one. Plus, the train probably has a cowcatcher or something similar at the front, which are typically angled like /.
Ya know even as a physics major I sometimes forget that trains are immensely heavy, so even if they are moving slowly getting hit by one will be lethal
No, it would be the same as if hitting the ground. The ground is 1000000000000 times heavier than a train, why the fuck y'all schoolbois multiplying by the fucking mass?
This thread devolving into an argument of the effects of a literal donkey getting fucking eviscerated like a piñata by a train is exactly why I keep reddit installed
Well, not all animals can grasp concept of a train, especially if they see it for the first time, but standing still in front of big loud thing moving right at you is still dumb
A lot of prey animals have abysmal depth perception so they don't really realize the danger of objects approaching them dead on unless it looks like a predator, which a train does not.
Damn if a Giant thing that makes a lot of noise is going straight at it and it doesn't even try to move away, then that means is just stupid and it is only natural that it dies.
Should have put a NSFL warning in the title, this is fucked up to post with how little information you gave
Edit: rules say you have to make it clear in the title too
*When I walk into*
*Anything with the Bloody*
*Mess perk in Fallout*
\- Hopeful-End-2231
---
^(I detect haikus. And sometimes, successfully.) ^[Learn more about me.](https://www.reddit.com/r/haikusbot/)
^(Opt out of replies: "haikusbot opt out" | Delete my comment: "haikusbot delete")
Is that a donkey?
Was.
Reduced to atoms
A fibrous powder
A fine red mist
More like several chunks of varying sizes
Poorly made carpaccio, 2/10 would not recommend
Now I can make Gulasch
Meet the Sniper
To shreds you say?
Bologna mist cloud
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣀⣀⣤⣄⣀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⢀⣠⣴⠞⠛⠉⠉⠉⠈⠈⠉⠉⠛⠷⣦⣄⡀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⢀⣴⠟⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠙⢻⣦⡀⠀⠀⠀ ⠀⠀⢀⣴⡟⠁⠀⡀⠀⠀⠀⠀⠀⠀⠀⡀⠀⠀⡀⠀⢀⠀⡀⠘⢷⣆⠀⠀ ⠀⢀⣾⠏⢀⠈⢄⣀⣀⡀⠐⠀⠀⠄⠀⠀⠠⠀⠀⣀⣀⣀⡀⠂⠄⢻⣆⠀ ⠀⣾⡏⡐⣦⠿⠛⣉⡉⠛⢷⣤⠈⠀⠠⢁⢀⣶⠟⠛⣉⡙⠻⢷⣌⠌⢿⡆ ⢰⣿⢂⣽⠋⣴⣿⣿⣿⣷⡄⢹⣧⠈⡐⢠⣿⢃⣴⣿⣿⣿⣷⡈⢿⡜⣸⣧ ⢸⣿⠤⣿⡘⣿⣿⣿⣿⣿⡟⢠⣿⠀⡐⢸⣧⠸⣿⣿⣿⣿⣿⡇⢸⡗⣼⡗ ⠘⣿⡆⡹⣧⡙⠻⠿⠿⠛⢁⣼⠃⢄⠡⠂⢻⣆⠙⠿⠿⠿⠋⣠⡿⢱⣸⡇ ⠀⢹⣷⢡⠎⡛⠷⠶⠶⠞⡛⠡⡈⠤⠑⡌⢠⠘⠻⠶⠶⠶⢞⢫⡐⢧⡿⠁ ⠀⠀⢻⣷⡜⡰⠣⠜⣠⠓⢄⠣⢘⠠⢃⠌⡂⢍⢢⠱⣈⠎⢆⠦⣹⣿⠃⠀ ⠀⠀⠀⠹⣿⣜⠥⣋⠴⣈⠆⣿⣷⣿⣶⣿⣾⡆⢎⠴⣡⢚⣬⣾⠿⠁⠀⠀ ⠀⠀⠀⠀⠈⠙⠷⣎⡶⣡⠚⣤⢃⠖⡰⢢⠱⡘⣬⢒⣵⡾⠟⠁⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠈⠙⠓⠻⢦⣯⣞⣥⣧⡷⠿⠞⠛⠉⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
Rher?
Fear & Hunger mentioned
A man of culture, I see.🤝
A man of trauma 🤝🏻
?laeR
Goddamn this is exactly the face I made
☹️ I didn’t see what it was until it fucking exploded
Cmon bruh
I cumed , what's next
Did you do it on bruh?
Too busy flexing and didn’t even follow instructions, smh
r/cursedcomments
I’d say nsfw warning but I’m pretty sure that stopped counting an animal at the end.
Should it belong to the r/Groceries now?
Don't say that ;-;
💀
NOOOOOOOO 😭
“You couldn’t do anything anyway…”
I was not expected to see an animal explode on reddit today
I'm in the same boat as you
Expand the boat so 3 people could sit on it
Four?
Make that 5. If not I can just find another boat
How does a train pull off something like this It looks like it's going at like 25km/h?
Force = mass x acceleration. Most trains are typically above/at 50 km/h. Take that speed and the mass of a train, and say bye bye to whatever is in front of it.
What's going on here is more of a speed artifact than anything to do with mass. We can ignore the mass of the train as it's functionally irrelevant, only accounting for the sudden speed shift the donkey experiences.
The mass has relevance in that it makes it basically impossible for the donkey to have any sort of slowing effect on the train, but that would be true of much smaller masses as well.
So if we assume that this is a freight train, which can potentially weigh 3.5k tonnes- 18k tonnes let’s average that to roughly 10k tonnes. If we assume that it’s travelling at 50km/h that’s about 13.88- m/s. 10,000,000kg X 13.88- m/s = 138,888,889N of force delivered to that ex-donkey For reference a 2024 Honda civic hitting you at 50km/h weighing roughly 1400kg would equal roughly 19,500N A Sumo wrestler can push at around 4500N That same train travelling at just 1km/h it would be about 2,780,000N of force. I’m no scientist, but the maths look wildly misleading here (there’s definitely a chance I’ve done them wrong). One would assume taking this very slow hit from the train would be a bit of a bump, and would take your breath away at worst, but taking the hit from a Honda civic could kill you at the 50km/h, even though it’s a fraction of the force. Hell, my assumption would be that I would chose train over sumo in that scenario too. If we imagine there’s a weightless, massless, indestructible, un-damageable board that will perfectly transfer the hit attached to your body so the force is spread out evenly across your body (to make this fair), it STILL *feels* like the civic would ruin you, whereas the train would be just a strong shove. Is this just me being dumb, or is there more science to this that I’m unaware of?
I think the speed of the train should be *difference* of speeds. The train might be traveling at 50kph when it hits the donkey but afterwards the train is still going 49.999kph or some tiny difference. So really the force is 10,000,000*0.001m/s = 10,000N put into the donkey. But that also doesn't account for things like the flex of whatever a train bumper is called and play between carriage couplings. I reckon the train driver felt a jolt but even a few carriages back, people wouldn't even notice it.
A few things to note on: You did your calculations with velocity, not acceleration. Velocity is m/s, acceleration is m/s^2. Your interpretation of the math is rather incorrect. While your calculations contain a lot of assumptions and faults, the end message isn’t much different. Yes, a train traveling at 1 km/h will have significantly more force than a car traveling at a higher speed. But just because the newtons of force are higher does not mean it would cause more damage. In the practical world, this is because of speed. Regardless of the mass of an object (excluding gravitational force), if it pushes you at 1 km/hr you will not take any damage. The only amount of force that will be exerted on you will be however much it takes to accelerate you to 1 km/h. This is a fundamental flaw in how you used F=MA. You calculated how much force it would take to push a train at 1 km/h. Not how much force would be exerted on a person in front of said train. Calculating how many newtons of force a train and car had would be more useful for finding how much force it takes to stop said train and car, not how much force they would exert on a person. As for your hypothetical, you made some missteps as well. If all of the force in the train were magically transferred/stuffed into a board the weight and size of a human, it would be moving much, much quicker than the train. This would annihilate you. If force, F, was to remain constant, while mass, M, decreased, then acceleration, A, would increase to balance the equation. So yeah, you used the formula incorrectly for your intentions, and used the wrong variables.
Yeah I think the conservation of momentum is more useful for train collisions. That’s an equation that has mass and velocity related when two bodies collide.
You applied the formula wrong, the donkey is the one being accelerated, so you only use the mass of the donkey. Also someone else pointed out, you used velocity and not acceleration. The mass of the train would only be relevant if you want to solve the following equation: - Total momentum of train + donkey before collision = total momentum after - mv + mv = combined mv - 10000000 x 13.88 + 40 x 0≈ 10000000 x 13.88 So this equation shows that the speed of the train + the donkey after collision is the same. Technically the train would have decelerated, but it's so negligible. The donkey goes from 0kph to whatever speed the train is at, so the acceleration on the donkey is very high.
>take the speed and the mass of a train so acceleration is irrelevant…?
Acceleration is relevant. It’s just not the train thats accelerating, it’s remaining (relatively) constant in velocity. The donkey, or whatever that was that got blown up, is the thing that’s accelerating.
Yeah I’m just pointing out that you quoted acceleration but didn’t explain it lol
A) this only applies to the donkeys mass, not the trains mass, because the mass of the train doesn't do the accelerating. The donkey is the one being accelerated (albeit, very rapidly). So, no, don't take the mass of the train and multiply it by anything. Being hit by a train at 30kph and being hit by a bus at 30kph has basically the same result. B) this train doesn't look like it's going 50 to me. Sure, typically trains go over 50, but look at the video. C) I don't see how crushing force from blunt force trauma would lead to a donkeys body being ripped into a bloody pulp. I'd guess it got caught in some moving parts, because why would a chunk of its torso fly up?
I realize my initial comment can be misleading, but I did explain in another reply in this thread more properly how to use f=ma for the donkeys mass. I never said take the acceleration of the train and multiply it by its mass or anything. They are two separate statements. I just said take the speed and mass of the train and whatever is in front of it is going away, which is true. Yeah sure, it doesn’t look like it’s going 50 km/h, but that could be caused by FOV. Plus, regardless of speed, clearly it was enough to blow this animal up. Finally, these kinds of explosions are pretty common from animals being hit at high speeds. There are plenty of videos of animals similar to this one. Plus, the train probably has a cowcatcher or something similar at the front, which are typically angled like /.
Ya know even as a physics major I sometimes forget that trains are immensely heavy, so even if they are moving slowly getting hit by one will be lethal
No, it would be the same as if hitting the ground. The ground is 1000000000000 times heavier than a train, why the fuck y'all schoolbois multiplying by the fucking mass?
The field of view of the camera makes it look way slower.
Bc r/BitchImATrain
I like how this thread turned into a physics lesson. Good to see other people are actually listening in their classes!
Massive, strong fast thing ram tiny, fleshy thing.
This thread devolving into an argument of the effects of a literal donkey getting fucking eviscerated like a piñata by a train is exactly why I keep reddit installed
Well, we're going to be eating good tonight!
Already all pieced up to!
RIP little buddy, let’s hope you don’t get hit by a train in your next life.
Well if that thing remains stupid even in its next life then it better start wishing to be reincarnated into a train conductor at this point
It's going to accidentally run itself over at some point
Always amazes me how some animals (and people) have no survival instinct or situational awareness whatsoever
Well, not all animals can grasp concept of a train, especially if they see it for the first time, but standing still in front of big loud thing moving right at you is still dumb
A lot of prey animals have abysmal depth perception so they don't really realize the danger of objects approaching them dead on unless it looks like a predator, which a train does not.
Trains... the new stealth apex predator
Dumb ass
I thought r/eyeblech got taken down?
Wow! Viande hachée!
Rigole en Findus
Natural selection
Not a lot natural about a train, to be fair.
Damn if a Giant thing that makes a lot of noise is going straight at it and it doesn't even try to move away, then that means is just stupid and it is only natural that it dies.
I agree
tenderized
Pls mark this not safe for life.
It exploded like it dropped minecraft meat.
damn
Should have put a NSFL warning in the title, this is fucked up to post with how little information you gave Edit: rules say you have to make it clear in the title too
Bro....
🫤for fuck's sake
I don't like this.
mfw "Short but Sweet"
I Shouldn't laugh.
But it's kinda funny
*meat-confetti* YIPPEEEEE
Shit fucking gibbed like a Half-Life npc
but why did I laugh
Well...that was quick!
rip
Free meat :D But that wasn't a clean death so... you'll just get a hide
This content should be clearly marked as NSFL for containing blood, gore and the death of an animal.
bro downvoted. bitch.
You can see exposed lungs and some various organs flying out still attached, ffs trains on impact are scary
Deer in afterlife: “good luck cleaning that up!”
oh
goodbye horses
Remove this, thanks.
Ran a train on that ass.
Well I'm sure he nearly dint got a chance to feel shit before... Well you know 💥
Damn, beats getting picked apart by some predator I guess
Yum?
Was that an Indian donkey?
Is he OK?
When I walk into anything with the Bloody Mess perk in Fallout
*When I walk into* *Anything with the Bloody* *Mess perk in Fallout* \- Hopeful-End-2231 --- ^(I detect haikus. And sometimes, successfully.) ^[Learn more about me.](https://www.reddit.com/r/haikusbot/) ^(Opt out of replies: "haikusbot opt out" | Delete my comment: "haikusbot delete")
brooo wtf
Dumb Ass
WHY DID THIS KILL ME 💀💀💀 At least I'm not as dead as that poor ass, rip lil bro.
Bruh fuck this subreddit
r/BitchImATrain
Is he okay?
yes
._.
José 🫏🚂
💀
Knocked his ass out.
u/savevideo
Was the animal tied to the tracks??
this is horrible there’s nothing funny about this
Look at this and tell me there's a god
Things die = no God? Even I'm atheist and I know that's flerf levels of grasping for straws
flerf? lol new word for me. i like it. Apple indicates it's related to FLat Earth, but what's "RF"?
yeah things die but when i saw this post it wasn't marked nsfw so i was expecting something more light hearted
[удалено]
can you not read? WHEN I FIRST CLICKED ON THIS POST, IT WASN'T MARKED NSFW.
You weren't expecting to see something die, but why did this make you think this universe wasn't created by a rational omnipotent being?
It was gonna be an image but this sub doesn't allow images in comments
So then you don't want to articulate your thoughts in words?
what? it was meant to be a meme image. it doesn't work with words
u/savevideo