Motive power for the experimental 14.6-Mg bus comes from the energy stored in a rotating flywheel which it carries. The

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Motive Power For The Experimental 14 6 Mg Bus Comes From The Energy Stored In A Rotating Flywheel Which It Carries The 1 (107.48 KiB) Viewed 25 times

Motive power for the experimental 14.6-Mg bus comes from the energy stored in a rotating flywheel which it carries. The flywheel has a mass of 1700 kg and a radius of gyration of 495 mm and is brought up to a maximum speed of 4070 rev/min. If the bus starts from rest and acquires a speed of 61 km/h at the top of a hill 150 m above the starting position, compute the reduced speed N of the flywheel. Assume that 12 percent of the energy taken from the flywheel is lost. Neglect the rotational energy of the wheels of the bus. The 14.6-Mg mass includes the flywheel. Answer: N = i rev/min