On the surface of the Moon, a ball is thrown straight up with an initial velocity. The ball has a constant acceleration due to the Moon's gravity.On a graph of the ball's velocity versus time, which of the following would represent the ball at its highest point above the Moon's surface?
A)when the velocity is equal to 0 m/s
B)when the velocity is equal to 1.6 m/s
C)when the velocity has its greatest value
D)when the velocity has its most negative value

Question

Quizplus · Accepted Answer

At the highest point of its trajectory, the ball's velocity is 0 m/s because it momentarily stops moving upwards before starting to fall back down. This is due to the constant acceleration (gravity) acting in the opposite direction of its initial velocity.

On the Surface of the Moon, a Ball Is Thrown