Three Solid,uniform,cylindrical Flywheels,each of Mass 65

Multiple Choice

Three solid,uniform,cylindrical flywheels,each of mass 65.0 kg and radius 1.47 m,rotate independently around a common axis through their centers.Two of the flywheels rotate in one direction at 8.94 rad/s,but the other one rotates in the opposite direction at 3.42 rad/s.Calculate the magnitude of the net angular momentum of the system.

A) 1020 kg ∙ m²/s
B) 1500 kg ∙ m²/s
C) 975 kg ∙ m²/s
D) 940 kg ∙ m²/s