Question: An 7 . 5 - cm - diameter, 3 3 0 gg solid sphere is released from rest at the top of a 1 .

An 7.5-cm-diameter, 330 gg solid sphere is released from rest at the top of a 1.6-m-long, 20 incline. It rolls, without slipping, to the bottom.
What fraction of its kinetic energy is rotational?

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