Proof Of Eqs
Let us again consider the situation of Fig. 11-16, in which force F rotates a rigid body consisting of a single .l?article of mass m fastened to the end of a mass less rod. During the rotation, force F does work on the body.
We next relate the work W done on the body in the torque on the body due to force 1. When the particle moves a distance along its circular path, only the tangential component F, of the force accelerates.
We can find the power P for rotational motion from