A semicircular ring of mass m and radius r is relesed from rest in the position shown with its lower edge resting on a horizontal surface. Minimum coefficient of static friction mu_(s) which is necessary to prevent any initial slipping of the ring is x/10, value of x is

A semicircular ring of mass m and radius r is relesed from rest in the

1.	A semicircular ring of mass m and radius r is relesed from rest in the position shown with its lower edge resting on a horizontal surface. Minimum coefficient of static friction mu_(s) which is necessary to prevent any initial slipping of the ring is x/10, value of x is
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