If a ball is thrown up in a moving train, it comes back to the sme place, why?

A ball is thrown up and then it returns to the thrower .Is it a projectile?

A ball is thrown up with a speed of 9.8 ms^-1 What the speed the ball at the highest point.

A ball is thrown up with a speed of 9.8 ms^-1 What the time taken by the ball to reach the highest point.

A die is thrown repeatedly untill a six comes up. What is the sample space for this experiment?

A die is thrown repeatedly until a six comes up. What is the sample space for the this experiment?

A ball is thrown up with a speed of 9.8 ms^-1 What the acceleration while the ball is moving downwards.

A ball is thrown up with a speed of 9.8 ms^-1 What The acceleration while the ball is moving upwards.

A boy travelling in an open car moving on a levelled road with constant speed tosses a ball vertically up in the air and catches it back. Sketch the motion of the ball as observed by a boy standing on the footpath . Give explanation to support your diagram.

A ball is thrown up with a speed of 9.8 ms^-1 What the acceleration due to gravity at the top most point.