A wheel and axle having a total moment of inertia of 0.002 0 kg m 2
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A wheel and axle having a total moment of inertia of 0.002 0 kg · m2 is caused to rotate about a horizontal axis by means of an 800- g mass attached to a weightless cord wrapped around the axle. The radius of the axle is 2.0 cm. Starting from rest, how far must the mass fall to give the wheel a rotational rate of 3.0 rev/s?
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