Dr. Chuck projects a ball horizontally from a lab bench. The ball lands on a bullseye marked on the floor a horizontal distance away. Compared to the time for the ball to simply drop vertically from the bench, the time in the air for Dr. Chuck's projected ball is
A)less.
B)the same.
C)greater.

Question

Quizplus · Accepted Answer

The time in the air for Dr. Chuck's projected ball is the same as the time for the ball to drop vertically from the bench. This is because the horizontal motion of the ball does not affect the vertical motion (due to the absence of air resistance), so the ball will take the same amount of time to fall vertically the same distance as it does to travel horizontally and fall vertically the same distance.

Dr Chuck Projects a Ball Horizontally from a Lab Bench