Question: An 8 . 0 - cm diameter 4 0 0 g sphere is released from rest at the top of a 2 . 1 -

An 8.0-cm diameter 400 g sphere is released from rest at the top of a 2.1-m-
long, 25 incline. It rolls, without slipping, to the bottom.
(a) What is the spheres angular velocity at the bottom of the incline?
(b) What fraction of its kinetic energy is rotational?

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