49. A flywheel of moment of inertia
A flywheel of moment of inertia 0.32 kg–m2 is rotated steadily 120 rad/s at by a 50 w electric motor. The kinetic energy of the flywheel is
(a) 4608 J
(b) 1152 J
(c) 2304J
(d) 6912J
Ans. c
(109)
5/5 - (1 vote)
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