A rigid turntable is rotating at

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics

Problem

10\,\text{rad/s}

. After turning through

35\,\text{rad}

, its angular speed is

25\,\text{rad/s}

. Assuming constant angular acceleration, calculate (i) the angular acceleration and (ii) the time required for this change.