If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will

Answer: Option C

The ball is thrown in vertically upward direction and given that the train is moving up with a constant velocity. Therefore, the horizontal velocity of the train and ball are both same. And, the ball travels the same horizontal distance as that of the train. Therefore, the ball will come back into the hands of thrower.