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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Definitions:

Comparative Advantage

The capability of an entity to generate a product or service with a smaller opportunity cost compared to another entity.

Comparative Advantage

The talent of a country or business to create a certain product or service more efficiently, incurring lower opportunity costs than competing entities.

Absolute Advantage

A condition where an entity can produce a good at a lower cost in terms of labor, resources, and time than another entity producing the same good.

Opportunity Cost

Forgoing possible gains from alternative choices when one path is taken.