For a certain engine having an average speed of 1200 rpm, a flywheel a – McqOptions

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1.	For a certain engine having an average speed of 1200 rpm, a flywheel approximated as a solid disc, is required for keeping the fluctuation of speed within 2% about the average speed. The fluctuation of K.E per cycle is found to be 2 KJ. What is the least possible mass of the flywheel if it diameter is not exceeding 1 m?
A.	40 kg
B.	51 kg
C.	62 kg
D.	73 kg
Answer» C. 62 kg

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