(I) A rolling ball slows down because the normal force
Chapter , Problem 82(choose chapter or problem)
(I) A rolling ball slows down because the normal force doesnot pass exactly through the cm of the ball, but passes in frontof the cm. Using Fig. 10-41, show that the torque resulting fromthe normal force (tn = FN in Fig. 10-41) is | of that due tothe frictional force, Tfr = r0F where r0 is the balls radius;that is, show that tn = gTfr.
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