Question: 6. The flywheel on a punch machine has a moment of inertia 4 x 103 kg m2. When its angular speed reaches 30 revolutions per

6. The flywheel on a punch machine has a moment of inertia 4 x 103 kg m2. When its angular speed reaches 30 revolutions per minute, what is its rotational kinetic energy? After each flush, its rotation speed decreases to 10 revolutions per minute. Find the work done by the flywheel during each stroke

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