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A solid, uniform disk of radius 0.250 m and mass 53.2 kg rolls down a ramp...

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Physics

A solid, uniform disk of radius 0.250 m and mass 53.2 kg rollsdown a ramp of length 4.70 m that makes an angle of 12.0° with thehorizontal. The disk starts from rest from the top of the ramp.

(a) Find the speed of the disk's center of mass when it reachesthe bottom of the ramp. m/s

(b) Find the angular speed of the disk at the bottom of theramp. rad/s

Answer & Explanation Solved by verified expert
4.0 Ratings (630 Votes)
Using the conservation of energy of the system PE KE the change in potential energy the change in kinetic energy taking the reference origin to be the top of the ramp mg0 mgh    See Answer
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