if you stand on a moving train travelling at 100mph and jump in the air, why dont you land in tha same spot.?

Question

if you do the same on moving esculator you will end up on the next step down. And that moves slower?

Answer 1

At the time you jump out your body is travelling at 100mph as well in a horizontal direction in relation with the ground.

Answer 2

Short Explanation:
FARTING while jumping in the air has negligible impact.

Detailed Explanation:
You wrong, you do land in the SAME spot on the train if it is moving at CONSTANT speed.

If it is ACCELERATING/DECELERATING you will land in a different spot (since the train is accelerating but YOU in the AIR are no longer accelerating WITH the train. So you lag and the train moves away.

On the escalator the AIR around you IS NOT moving with the ESCALATOR. In the train the AIR around you IS moving with the TRAIN. So on the escalator the AIR is holding you back a LITTLE as you jump, and you land one step down.

I say a LITTLE because you are still in MOMENTUM with the SPEED of the escalator. But you lose all this momentum quickly when jumping because of the FRICTION between you and the AIR around you which IS NOT moving.

If you had a special train with no WALLS and CEILING the same would happen as on the escalator, i.e. the still AIR around you would hold you back if you jump. This is REGARDLESS of the train accelerating or decelerating because the air around IS NOT moving with the train.

The FASTER our special train moves the FASTER you will lose you MOMENTUM (or INERTIA) because of the HIGHER FRICTION between YOU and the still AIR around you.

Your curiosity falls under the topics of Inertia, Momentum, Friction, Velocity, Acceleration.

In real life it's hard to say what will happen because of JERKY British trains, bad train DRIVERS, and people with the WINDOWS open on a freaking COLD day. FARTING while jumping in the air has negligible impact.

Hope this answers your question.

Answer 3

As long as the train is moving at constant velocity, you are too. So if you jump straight up, you will land in the same spot. (I have tried it doing this on the train, by the way. On a bus and a ferry, too.)
I have never tried this experiment on an escalator... I don't know about your results, because in theory you should land on the same step. It might be possible that since you are moving in 2 plains (up and forwards) it might mess up your internal balance, and you might have jumped a little backwards, making you miss your original step and land on the next one.

Answer 4

If you are moving from step to step on an escalator, you probably aren't jumping straight up.

On the train, the train is moving at 100 mph, and you are too. So when you jump up, you continue to move at 100 mph.

If you are on the exterior of the train, where you would be affected by wind resistance, you wouldn't come back down in the same place.

Answer 5

Natural resistances. If you were doing this in outer space, you would land on the same spot (actually you'd float off, but with the same relation to where you jumped.) This is because of intertia.

Such things as gravity(i.e. weight) and friction(with air molecules and whatnot) will slow you down, but not enough to make you completely fall off the train. Now if you do this within a train, you still may move, but much less noticeably.

Answer 6

you do the same on moving esculator you will end up on the next step down. And that moves slower?

Answer 7

once you're status on the practice the frictional resistance between you and the practice keeps you on an analogous velocity because of the fact the practice. you will be leaning forward against the stress of the air hitting your physique. once you leap interior the air the air tension (no pun) and the lack of ability of frictional resistance skill you will decelerate relative to the practice for this reason you will land further lower back. because of the fact your velocity is now under the practice you would be thrown backwards. What are you going to do now?

Answer 8

When you are standing, you are "attached" (by gravity) to the moving train and you have the same forward momentum (inertia). Your forward momentum slows down slightly when you jump, but the trains doesn't.

Answer 9

To make it simple... the objects you are riding on are moving in a forward motion which means YOU are moving in a forward motion as well. If you jump, you're still moving forward at the speed the object you were on was going at, but decreasing speed gradually since you are no longer on it. Get it?

Answer 10

Im thinking because of the force of the wind and your bodies mass. Like when you throw a paperwad out of the car window it doesnt land in the same place because it is light and because of the wind. I think the faster you go and the lighter you are the more likely you will not hit the same spot.

hope my blubbering helped a little. :-)