A flywheel connected to a punching machine has to supply energy of 400 Nm while running at a mean… Description



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Question

A flywheel connected to a punching machine has to supply energy of 400 Nm while running at a mean angular speed of 20 rad/s. If the total fluctuation of speed is not to exceed ±2%, the mass moment of inertia of the flywheel in kg-m2 is (A) 25 (B) 50 (C) 100 (D) 125


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