A solid cast iron disk of mass 1000kg is rotating at 350rpm. Diameter – McqOptions

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1.	A solid cast iron disk of mass 1000kg is rotating at 350rpm. Diameter of the disk is 1m and time taken to come to stop the disk by brake is 1.6sec.Square of radius of gyration is 0.2. Calculate the average angular velocity during braking period.
A.	15.45rad/s
B.	17.32rad/s
C.	18.32rad/s
D.	None of the mentioned
Answer» D. None of the mentioned

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