A String Is Wrapped Around a Pulley with a Radius

question 8

Multiple Choice

A string is wrapped around a pulley with a radius of 2.0 cm and no appreciable friction in its axle.The pulley is initially not turning.A constant force of 50 N is applied to the string,which does not slip,causing the pulley to rotate and the string to unwind.If the string unwinds 1.2 m in 4.9 s,what is the moment of inertia of the pulley?

• A)0.17 kg ∙ m²
• B)17 kg ∙ m²
• C)14 kg ∙ m²
• D)0.20 kg ∙ m²
• E)0.017 kg ∙ m²

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Definitions:

Equilibrium Price

The cost at which the amount of a product available matches the amount of the product sought after.

Equilibrium Quantity

The quantity of goods or services supplied and demanded at the equilibrium price, where market supply and demand balance each other.

Pumpkin Market

A conceptual or specific market used as an example, often to illustrate seasonal or niche market dynamics.

Equilibrium Price

The price at which the quantity of a good or service demanded equals the quantity supplied.