Additional Problems (Problem 112)

AP Physics C (Mech)

Rotation

OS-UP-10-AD112 · OpenStax University Physics Volume 1

Additional Problems (Problem 112)

A system of point particles is rotating about a fixed axis at 4 rev/s. The particles are fixed with respect to each other. The masses and distances to the axis of the point particles are $m_{1} = 0.1 kg, r_{1} = 0.2 m$ , $m_{2} = 0.05 kg, r_{2} = 0.4 m$ , $m_{3} = 0.5 kg, r_{3} = 0.01 m$ . (a) What is the moment of inertia of the system? (b) What is the rotational kinetic energy of the system? Select the answer to part (a).