Why we can't stand near the train which is high in motion?

Question

Why we can't stand near the train which is high in motion?

Answer 1

hey, comman ya.Who has proven the fact of standing near the train wont suck u?      Since,the train is comming from a relative motion to a still motion and u r not in any motion,the momentum of the train will be higher than urs.so u will be sucked in.Take the example of catching a moving train/bus or getting out of a moving train/bus

Answer 2

IT IS DANGEROUS YOU CAN GET HURT

Answer 3

There is a simple but mysterious physics rule called "Bernoulli's principle " .

In this rule, Daniel Bernoulli stated that an increase in the speed of the fluid occurs simultaneously with a decrease in its pressure.

Your question is a very good example; when you stand close to a train which has high speed, the air (fluid) that moves with train has to pass from a channel shaped by your body and train, so, the speed of air has to increase to pass this narrow channel, and thus, the pressure of air between you and train falls dramatically.

in this case, the motionless air behind your back has more pressure on your body and you feel that an invisible hand (air pressure force) pushes you towards the train. this force, depending on train(air) speed and your distance to rails, can become as big as 190 Kgf . It means if you stand really close to a high-speed train , the air pressure force will be high enough to push you under the wheels, so be careful.  

Answer 4

  The eddies whipped up by the trains structure,at high speed could cause you to fall towards or away from the train.

  If you applied it to a jet plane the forces could be enough to kill you.

Answer 5

If you mean you can't stand near a passing train then there is no reason.  There is a myth that you will be sucked up in the wind as the train passes but that has been proven false countless times.

If you mean something else then I don't know,

Answer 6

Actually we can. The question is why shouldn't we. Cus a fast moving train draws nearby air along with it. It can, if the train is pretty fast , hurt you or make you loose your balance and can probably hurt you even without touching you.