For a point on a spinning disc in uniform circular motion, which of the following is not constant?
A) its speed
B) its period of motion
C) its centripetal acceleration
D) the magnitude of its acceleration

Question

Quizplus · Accepted Answer

The centripetal acceleration changes direction as the point moves around the circle, so it is not constant in direction, although its magnitude is constant.

For a Point on a Spinning Disc in Uniform Circular