A solid uniform disk of radius can rotate freely about its central axle

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

Problem

3.0\,\text{kg}

solid uniform disk of radius

0.20\,\text{m}

can rotate freely about its central axle. A light, non-stretching string is wrapped around the rim and supports a

1.2\,\text{kg}

mass hanging vertically. Determine the magnitude of the downward linear acceleration of the

1.2\,\text{kg}

mass. (For a solid disk,

I=\tfrac12MR^2