`A` and `B` are two trains moving parallel to each other. If a balls is thrown vertically up from the train `A`, the path of the ball is

A ball that is thrown up returns to the surface of Earth because of

A ball that is thrown up returns to the surface of Earth because of

Two trains are moving towards each other and cross each other. The apparent pitch

If a ball is thrown up in a moving train, it comes back to the person's hands. Why?

Two trucks are moving on parallel tracks. A person on one truck projects a ball vertically upward then path of the ball as seen by four observers : from the ground, from the second truck moving with same velocity as that first truck, from the second truck moving with speed greater than first one in same direction are :

The distance between two stations is 340 km. Two trains start simultaneously from these stations on parallel tracks to cross each other. The speed of one of them is greater than that of the other by 5 km/hr. If the distance between the two trains after 2 hours of their start is 30 km, find the speed of each train.