Question: (a) A yo-yo is made of two solid cylindrical disks, each of mass 0.050 kg and diameter 0.075m, joined by a (concentric) thin solid cylindrical

(a) A yo-yo is made of two solid cylindrical disks, each of mass 0.050 kg and diameter 0.075m, joined by a (concentric) thin solid cylindrical hub of mass 0.0050 kg and diameter 0.010m. Use conservation of energy to calculate the linear speed of the yo-yo when it reaches the end of its 1.0-m-long string, if it is released from rest.
(b) What fraction of its kinetic energy is rotational?

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a There are two forces on the yoyo gravity and the string tension If we assume that the top of the s... View full answer

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