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1. |
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 |
Answer» E. | |