The angular acceleration versus time for an object undergoing circular motion is shown in the figure below.If the object started from rest at t = 0 s,the net angular displacement of the object at t = t_f is A)in the clockwise direction. B)in the counter-clockwise direction. C)zero. D)The displacement cannot be determined.

Question

Quizplus · Accepted Answer

Since the angular acceleration is positive for the first half of the graph, the object is undergoing counterclockwise circular motion, as it is accelerating in the counterclockwise direction. Therefore, at t = t_f, the net angular displacement of the object will also be in the counterclockwise direction.

The Angular Acceleration Versus Time for an Object Undergoing Circular