8) The flywheel of a gasoline engine is required to give up 500 J of kinetic energy while its angular velocity decreases from 650 rev/min to 520 rev/min. What moment of inertia is required?
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1 revolution = 2π radians and 1 minute = 60 seconds. So, 650 rev/min = 650 * 2π / 60 rad/s = 68.07 rad/s And, 520 rev/min = 520 * 2π / 60 rad/s = 54.44 rad/s The kinetic energy of a rotating object is given by the formula KE = 1/2 * I * ω^2, where I is the Show more…
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