The tangential force F shown in figure below is applied to a 2-kg disc is allowed to rotate about an axis through its center.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 diameter of the disk?
A)12.7 cm
B)200 cm
C)400 cm
D)9.65 cm
E)19.2 cm

Question

The tangential force F shown in figure below is applied to a 2-kg disc is allowed to rotate about an axis through its center.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 diameter of the disk? 
A)12.7 cm 
B)200 cm 
C)400 cm 
D)9.65 cm 
E)19.2 cm

Quizplus · Accepted Answer

The Answer of The tangential force F shown in figure below is applied to a 2-kg disc is allowed to rotate about an axis through its center.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 diameter of the disk? 
A)12.7 cm 
B)200 cm 
C)400 cm 
D)9.65 cm 
E)19.2 cm

The Tangential Force F Shown in Figure Below Is Applied