The Rigid Object Shown Is Rotated About an Axis Perpendicular

Multiple Choice

The rigid object shown is rotated about an axis perpendicular to the paper and through point P. The total kinetic energy of the object as it rotates is equal to 1.4 J. If M = 1.3 kg and L = 0.50 m, what is the angular velocity of the object? Neglect the mass of the connecting rods and treat the masses as particles.

A) 1.3 rad/s
B) 1.5 rad/s
C) 1.7 rad/s
D) 1.2 rad/s
E) 2.1 rad/s