You are riding in an enclosed train car moving at 90 km/h.. if you throw a baseball straight up, where will the baseball land? . in front of you.. behind you.. in your hand.. can't decide from the given information.

here the ball we land exactly into the hand of the person who throw it upwards.

Explanation:

Since train is moving with uniform speed as

now when we throw a ball vertically upwards with certain velocity then due to inertia the ball will automatically start moving in horizontal direction with same speed as that the speed of the train

so while ball is in air then the distance moved by the ball in horizontal direction will be same as that the distance moved by the train in horizontal direction.

So here the ball we land exactly into the hand of the person who throw it upwards.