The rim of a rotating turntable is from its center

PHYSICS · Subjective · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

The rim of a rotating turntable is

0.15\,\text{m}

from its center. At an instant when a point on the rim has a tangential acceleration of

0.90\,\text{m/s}^2

, determine the angular acceleration of the turntable.