A grinding disc rotates at

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

Problem

600\,\text{rpm}

. When the power is switched off it comes to rest uniformly in

15\,\text{s}

. Calculate its angular retardation in

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