## Question

###### A solid sphere of mass M and radius R starts from rest from the top of...

A solid sphere of mass M and radius R starts from rest from the top of an inclined plane of height h, and rolls without slipping. Find the speed of the center of mass at the bottom of the inclined plane. (I = {MR) М. R x d u CM Radi-Rasmussen Select one: a. Egh cose 10 b Mgh d. Mgh sin 0 e v2gh • 1. Mgd n. Vigh sin e ENG

## Answers

M d M 9 total By conservation of energy, еличи at the top is equal to total equal to total energy at the bottom : P.Ei + k.fi = P.E + K.Et f Mgh to = 0 + 1 Mv + 1 IW there are both translational and rotational KE at the botton W R Mgh = 1 mv² + 1 + 2 Maw 2 R gh Yv? lo V 10gh 7

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