College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

Exercise 125

An industrial flywheel with a moment of inertia of 4.25 × 10 2 kg · m 2 rotates with a speed of 7500 rpm. (a) How much work is required to bring the flywheel to rest (b) If this work is done uniformly in 1.5 min, how much power is required