Physics

Problem

Two small masses of

0.20\,\text{kg}

are attached to the ends of a light rod of length

0.30\,\text{m}

. The rod rotates in a horizontal plane about its midpoint; the center of mass of the system remains at rest. If the rotational kinetic energy of the system is

1.1\,\text{J}

, what is its angular speed? a)

11\,\text{rad/s}

16\,\text{rad/s}

7.9\,\text{rad/s}

22\,\text{rad/s}

Browse the problem library