A tennis ball is thrown upward at an angle from point A. It follows a parabolic trajectory and hits the ground at point D. At the instant shown, the ball is at point B. Point C represents the highest
-At which point is the velocity vector changing most rapidly with time?
A)A
B)B
C)C
D)D
E)It is changing at the same rate at all four points.

Question

A tennis ball is thrown upward at an angle from point A. It follows a parabolic trajectory and hits the ground at point D. At the instant shown, the ball is at point B. Point C represents the highest 
-At which point is the velocity vector changing most rapidly with time?
A)A 
B)B 
C)C 
D)D 
E)It is changing at the same rate at all four points.

Quizplus · Accepted Answer

The rate of change of the velocity vector with time is determined by the acceleration. If the acceleration is constant, the velocity vector changes at the same rate at all points.

A Tennis Ball Is Thrown Upward at an Angle from Point