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I just wanted to verify that the Torque that the friction of a pivot would exert against the oscillation of a pendulum was:

Torque = [tex] \mu [/tex] m g r

Where [tex] \mu [/tex] is the coefficient of friction, m is the total mass that is being supported by the pivot and r is the radius of the axis/rod that is supporting the pendulum. So the rod turns in the pivot as the pendulum oscillates.

So far I have only found one online link to this and it doesn't seem to be discussed in any of the mech. books I've been looking through.

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# Friction of a pivot

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