A Playground Merry-Go-Round Has a Radius R and a Rotational

question 19

Multiple Choice

A playground merry-go-round has a radius R and a rotational inertia I.When the merry-go-round is at rest, a child with mass m runs with speed v along a line tangent to the rim and jumps on.The angular velocity of the merry-go-round is then:

• A)mv/I
• B)v/R
• C)mRv/I
• D)2mRv/I
• E)mRv/(mR² + I)

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Definitions:

Standardized

refers to making something conform to a standard, ensuring consistency and uniformity across different situations or applications.

Differentiated

In a market, it refers to products that are distinguished from each other through variations in quality, features, branding, or customer service.

Oligopoly

A market structure in which a few firms sell either a standardized or differentiated product, into which entry is difficult, in which the firm has limited control over product price because of mutual interdependence (except when there is collusion among firms), and in which there is typically nonprice competition.

Homogeneous Product

A product that cannot be distinguished from competing products from different suppliers.