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The flywheel of a machine having weight of 4500 N and radius of gyration of 2 m has cyclic fluctuation of speed from 125 r.p.m to 120 r.p.m. Assuming g 10m/ s2 the maximum fluctuation of energy is 

(a) 12822 N-m                (b) 24200 N-m

(c) 14822 N-m                (d) 12100 N-m 

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