Rotational Kinetic Energy - Boston University
mechanical energy to find the non-conservative work done, W. nc, on the ball when it reaches the bottom. Assume that the ball is initially at rest and at a height h above ground. 11. Solution: Conservation of mechanical energy gives E. i + W. nc = E. f. Initial mechanical energy, E. i = K. i + U. i = 0 + Mgh = Mgh Final mechanical energy, E. f ...
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