Question: A small 200-g collar C can slide on a semicircular rod which is made to rotate about the vertical AB at the constant rate of

A small 200-g collar C can slide on a semicircular rod which is made to rotate about the vertical AB at the constant rate of 6 rad/s. Determine the minimum required value of the coefficient of static friction between the collar and the rod if the collar is not to slide when

(a) ( = 90o,

(b) ( = 75o,

A small 200-g collar C can slide on a semicircular

I r = 600 mm 200 g

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