The Tangential Force F Shown in Figure Below Is Applied

The tangential force F shown in figure below is applied to a disc is allowed to rotate about an axis through its center.The diameter of the disc is 24.0 cm.The magnitude of this tangential force is given in the graph of F vs.Angular Position.With the disc at rest initially and ignoring frictional torque,the disc's angular velocity after one full rotation is -31.4 rad/sec.What is the mass of the disk?

A) 1.06 kg
B) 1.21 kg
C) 2.00 kg
D) 33.4 kg
E) 5.64 kg

Correct Answer:

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