Fluctuation energy of an engine is 56 kn.m, mass of flywheel is 6.5 tones and the radius of gyration is 1.8m. if the mean speed of the engine is 120 rpm, find the maximum and minimum speeds 120 rpm & 118 rpm 121 rpm & 119 rpm 122 rpm & 120 rpm 123 rpm & 121 rpm
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