Processing Math: Done
Solution 17.4b
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(New page: As the brick has no speed at the start <math>\text {KE = KE gained}</math>. Using Energy lost due to friction = Work done against friction we get, <math>\begin{align} & \text{PE lost - ...)
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Revision as of 09:46, 30 September 2010
As the brick has no speed at the start
Using Energy lost due to friction = Work done against friction we get,
9.8
3
2−10
3.2=30.72 J21
2v2=30.72v=5.54 ms-1