The data track of a compact disc (radius ) moves past the laser at a linear speed of

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

Problem

The data track of a compact disc (radius

0.060\,\text{m}

) moves past the laser at a linear speed of

1.2\,\text{m/s}

. Determine the disc’s angular speed in revolutions per minute (rev/min).