A smooth steel sphere is resting inside a shallow bowl fixed on a rotating turntable
PHYSICS · Subjective · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
A smooth steel sphere is resting inside a shallow bowl fixed on a rotating turntable. The turntable is first brought to a steady angular speed and then, without warning, is abruptly stopped and immediately set rotating in the opposite direction.
(a) What kind of inertia explains why the sphere initially tries to roll out of the bowl when the turntable is stopped?
(b) What kind of inertia explains the sphere’s resistance to the sudden reversal of rotation direction?
Write the name of the inertia in each case and justify each answer in one sentence.