A 16-kg block is attached to a cord that is wrapped around the rim of a flywheel of diameter 0.40 m and hangs vertically, as shown. The rotational inertia of the flywheel is 0.50 kg · m². When the block is released and the cord unwinds, the acceleration of the block is: A. 0.15g B. 0.56g C. 0.84g D. g E. 1.3g
Added by Roy G.
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The force acting on the block is its weight, which is mass times gravity (16 kg * 9.8 m/s^2 = 156.8 N). This force creates a torque on the flywheel, which is force times radius (156.8 N * 0.2 m = 31.36 Nm). The angular acceleration of the flywheel (and Show more…
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