A ball is thrown straight up. It reaches its highest point and then falls back. Which of the following is the correct statement?
A) Throughout its motion, the ball's velocity is zero.
B) At the highest point in its motion, the ball's acceleration is zero.
C) At the highest point in its motion, the ball's velocity is zero.
D) Throughout its motion, the ball's acceleration is zero.
E) At the highest point in its motion, the ball's velocity and acceleration are zero.

Question

Quizplus · Accepted Answer

At the highest point, the ball comes to a temporary stop before falling down. At this point, the velocity becomes zero but the acceleration due to gravity (which always acts downwards) is still present. Therefore, choice C is the correct statement. Choices A, B, D, and E are incorrect as they do not accurately describe the motion of the ball.

A Ball Is Thrown Straight Up