A Merry-Go-Round with a Moment of Inertia of 6 $\times$ 10³ Kg · M² Is Coasting at 2

question 22

Multiple Choice

A merry-go-round with a moment of inertia of 6.78 $\times$ 10³ kg · m² is coasting at 2.20 rad/s.When a 72.6-kg man steps onto the rim,the angular velocity decreases to 2.0 rad/s.The radius of the merry-go-round is

• A)3.06 m
• B)3.66 m
• C)4.27 m
• D)4.88 m
• E)5.49 m

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Definitions:

Demand Function

A mathematical representation of the relationship between the quantity demanded of a good and its influencing factors, like price.

Cobb-Douglas

A type of production function used in economics to represent the relationship of an output to inputs, specifically capital and labor, with constants denoting the output elasticity of each input.

Perfect Substitutes

Two or more goods that can be used in place of one another with no loss of utility for the consumer, resulting in constant marginal rates of substitution.

Perfect Substitutes

Goods or services that can be used in exactly the same way and are interchangeable by consumers.