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A nail is stuck in the tread of a tire with radius r = 0.24 m


A nail is stuck in the tread of a tire with radius r = 0.24 m. It is held in with a maximum frictional force of F= 0.76 N. The nail has a mass of m = 6g.


 Part (a) what is the tire tread's lowest tangential speed, in meters per second, at which the nail will pull free from the tire? 

Part (b) At what tangential speed, in meters per second, will the nail pull free when it is at the top of the tire?

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