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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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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Initfally mary 0 30und, gh.l and the ock LA Atatfonary with aespect to the gatund, So, net fnitHale angular momentum is zero.

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when the gire thouw te ock oh velocity v tangential to the Atatonony may go dound, Because the angular momentum of syAtem ts conserve the ma go starts to 2otate on taxs wit angula velocity w. Stnce remairs Atationmoy om the marry o undAo it tangen tial velociy s and angular velo ey is egual to the velociy ard angulor velocity of 2ound mon

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Tp vies Top vieuo Initial condition Final condition -URO

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