A grinding wheel rotates at 3000 rpm. When power supply is cut off the – McqOptions

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1.	A grinding wheel rotates at 3000 rpm. When power supply is cut off the wheel stops in 5 sec. The number of revolutions made by the wheel before coming to rest would be
A.	500
B.	107 dynes
C.	250
D.	3000
E.	1000
Answer» D. 3000

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