Give reasons for the following

It is dangerous to get down from a moving bus even if the bus is moving slowly.

Yes, it is very dangerous to get down from a moving bus, because of the inertia of the body. Let us suppose that there is a man who is trying to get down from a moving bus. The concept here is that when the bus is moving, man is also moving with it. And man has inertia of motion that is his body will try to be in state of motion. But if he gets down suddenly his body will stop. And as a result he will get hurt after falling down.

In short when the bus is moving, man has inertia of motion but if he gets down that inertia will try to keep him in motion, which will eventually results into injury of the man.