A Pulley with a Radius of 3

question 102

Multiple Choice

A pulley with a radius of 3.0 cm and a rotational inertia of 4.5 * 10^-3 kg∙m² is suspended from the ceiling.A rope passes over it with a 2.0-kg block attached to one end and a 4.0-kg block attached to the other.The rope does not slip on the pulley.When the velocity of the heavier block is 2.0 m/s the total kinetic energy of the pulley and blocks is:

• A)2.0 J
• B)12 J
• C)14 J
• D)22 J
• E)28 J

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The intricate links among residents and workers in a given society, which help that society to operate efficiently.

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