A pulley of 21 cm diameter and revolving at 1600 r.p.m. Find out the s – McqOptions

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1.	A pulley of 21 cm diameter and revolving at 1600 r.p.m. Find out the speed of the belt running over it?
A.	1120 m/minute
B.	1056 m/minute
C.	1200 m/minute
D.	None of these
Answer» D. None of these

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