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Asked Nov 8, 2019

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A girl of mass (M) stands on the rim of a frictionless merry-go-round of radius (R) and rotational inertia (I) that is not moving. She throws a rock of mass (m) horizontally in a direction that is tangent to the outer edge of the merry-go-round. The speed of the rock, relative to the ground, is V. Afterward, what are:

(a) The angular speed of the merry-go-round?

(b) The linear speed of the girl

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