A uniform 215- kg spinning disk with a radius of 0233 m is, Ask an Expert

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A uniform 2.15- kg spinning disk with a radius of 0.233 m is brought to rest by a brake-pad pressed against the side 0.149 m from the rotation axis. The wheel is brought to rest from an angular velocity of 17.3 rad/s in a time of 20.5 s. What frictional force was applied by the brake pad?

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