A 40-Kg Boy Is Standing on the Edge of a Stationary

question 45

Multiple Choice

A 40-kg boy is standing on the edge of a stationary 30-kg platform that is free to rotate.The boy tries to walk around the platform in a counterclockwise direction.As he does:

• A)the platform doesn't rotate.
• B)the platform rotates in a clockwise direction just fast enough so that the boy remains stationary relative to the ground.
• C)the platform rotates in a clockwise direction while the boy goes around in a counterclockwise direction relative to the ground.
• D)both go around with equal angular velocities but in opposite directions.

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Definitions:

CTRL

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A tool provided by Microsoft Office applications that allows users to create visually appealing diagrams and graphics to represent information.