A coin is sitting on a record as sketched in the figure below. It is found that

Question

A coin is sitting on a record as sketched in the figure below. It is found that the coin slips off the record when the rotation rate is 0.39 rev/s. What is the coefficient of static friction between the coin and the record?

__________km

A coin is sitting on a record as sketched in the figure below. It is found that the coin slips off the record when the rotation rate is 0.39 rev/s. What is the coefficient of static friction between the coin and the record?
____________

A coin is sitting on a record as sketched in the figure below. It is found that the coin slips off the record when the rotation rate is 0.39 rev/s. What is the coefficient of static friction between the coin and the record? __________km A coin is sitting on a record as sketched in the figure below. It is found that the coin slips off the record when the rotation rate is 0.39 rev/s. What is the coefficient of static friction between the coin and the record?

Explanation / Answer

The vertical reaction = mg
Frictional force at the point of slipping = ?mg
Centripetal force = mr?

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