ch08-p011 - 11. (a) If Ki is the kinetic energy of the...

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11. (a) If K i is the kinetic energy of the flake at the edge of the bowl, K f is its kinetic energy at the bottom, U i is the gravitational potential energy of the flake-Earth system with the flake at the top, and U f is the gravitational potential energy with it at the bottom, then K f + U f = K i + U i . Taking the potential energy to be zero at the bottom of the bowl, then the potential energy at the top is U i = mgr where r = 0.220 m is the radius of the bowl and m is the mass of the flake. K i = 0 since the flake starts from rest. Since the problem asks for the speed at the
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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