The tangential force F shown in figure below is applied to a 2-kg disc with a 30-cm diameter which 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,determine the disc's angular velocity after one full rotation
A)-20.5 rad/s
B)+20.5 rad/s
C)0 rad/s
D)-420 rad/s
E)+420 rad/s

Question

The tangential force F shown in figure below is applied to a 2-kg disc with a 30-cm diameter which 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,determine the disc's angular velocity after one full rotation 
A)-20.5 rad/s 
B)+20.5 rad/s 
C)0 rad/s 
D)-420 rad/s 
E)+420 rad/s

Quizplus · Accepted Answer

The Answer of The tangential force F shown in figure below is applied to a 2-kg disc with a 30-cm diameter which 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,determine the disc's angular velocity after one full rotation 
A)-20.5 rad/s 
B)+20.5 rad/s 
C)0 rad/s 
D)-420 rad/s 
E)+420 rad/s

The Tangential Force F Shown in Figure Below Is Applied