A flywheel, initially at rest, begins to rotate with a uniform angular acceleration…

PHYSICS · Subjective · A Level · Physics · Engineering physics · Engineering physics

Problem

A flywheel, initially at rest, begins to rotate with a uniform angular acceleration of

4.0\,\text{rad s}^{-2}

. For a point on the rim, at what time after the motion begins will the magnitudes of its tangential and centripetal accelerations become equal?