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10. A pendulum consists of a bob of mass m attached to a very light rod of length L and negligible mass. The other

10. A pendulum consists of a bob of mass m attached to a very light rod of length L and negligible mass. The other end of the rod is fixed to a frictionless pivot. The pendulum is released when the bob is directly over the pivot. Find the force exerted by the rod when (a) the bob is at the lowest point, (b) 30 above horizontal, (c) 30 below horizontal.

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a When the bob is at the lowest point it is directly below the pivot At this position the pendulum is in equilibrium and the force exerted by the rod ... blur-text-image

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