physics

A 30g ball rolls around a 40cm diameter L-shaped track at 60rpm. What is the magnitude of the net force that the track exerts on the ball? rolling friction can be neglected.

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  1. It has to be equal to centripetal force

    massball*w^2 * r

    change rpm to rad/sec, and cm to m, and g to kg.

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    bobpursley

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