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

question 28

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/(mR²v + I)

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Definitions:

Associative Play

A stage in child development where children play alongside each other, often engaging in similar activities, but without a complex organization or collaboration.

High Expectations

Refers to an individual's anticipation of achieving high levels of performance or success, often encouraging greater effort and persistence.

Creativity

The ability to produce original and valuable ideas or solutions to problems.

Escalating Commitments

The phenomenon where individuals or organizations continue to invest time, money, or resources into a failing course of action due to the amount already invested.