a chord of negligible mass is wound around the rim of a flywheel of mass 20kg and radius 20cm
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A cord of negligible mass is wound round the rim of a flywheel of mass 20kg and radius 20cm. A steady pull of 25N is applied on the cord as shown in Fig. The flywheel is mounted on a horizontal axle with frictionless bearings.
(a) Compute the angular acceleration of the wheel.
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Answer:(d) Compare answers to parts (b)and (c).
Explanation:
gained by the wheel = work done by the force. There is no loss of energy due to friction.
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