A Pulley with Radius R and Rotational Inertia I Is

question 10

Multiple Choice

A pulley with radius R and rotational inertia I is free to rotate on a horizontal fixed axis through its center.A string passes over the pulley.A block of mass m₁ is attached to one end and a block of mass m_2, is attached to the other.At one time the block with mass m₁ is moving downward with speed v.If the string does not slip on the pulley, the magnitude of the total angular momentum, about the pulley center, of the blocks and pulley, considered as a system, is given by:

• A)(m₁ - m₂)vR + Iv/R
• B)(m₁ + m₂)vR + Iv/R
• C)(m₁ - m₂)vR - Iv/R
• D)(m₁ + m₂)vR - Iv/R
• E)none of the above

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