a couple of moment 200/pie dyne cm produces 2 revolutions per second in a body.calculate the work done during two revolutions.

Dear student 
The work done W = F.s
momemt of force is torque =200/pie dyne cm
   no.of revolution n = 2
for rotational  motion 
W = F.r.θ    =τ.θ   =τ.2πn   =200π×2×2×πW = 800 dyne cm radian
Regards

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