Can an object's velocity change direction when its acceleration is constant? Support your answer with an example.
A)No, this is not possible because it is always speeding up.
B)No, this is not possible because it is always slowing up.
C)No, this is not possible because it is always speeding up or always slowing down, but it can never turn around.
D)Yes, this is possible, and a rock thrown straight up is an example.
E)Yes, this is possible, and a car that starts from rest, speeds up, slows to a stop, and then backs up is an example.

Question

Quizplus · Accepted Answer

An object can change direction with constant acceleration. For example, a rock thrown straight up has constant downward acceleration due to gravity, yet its velocity changes direction at the peak of its trajectory.

Can an Object's Velocity Change Direction When Its Acceleration Is