Starting from rest,a wheel undergoes constant angular acceleration for a period of time T.At what time after the start of rotation does the wheel reach an angular speed equal to its average angular speed for this interval?
A)0.25T
B)0.50T
C)0.67T
D)0.71T

Question

Quizplus · Accepted Answer

The wheel reaches its average angular speed at 0.50T because the average angular speed is defined as the total angular displacement divided by the total time, which, under constant acceleration, is reached at the midpoint of the time interval.

Starting from Rest,a Wheel Undergoes Constant Angular Acceleration for a Period