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Solution 15.3

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(New page: First find the impulse (change in momentum). <math>\begin{align} & \text{Impulse }=mv-mu \\ & 1200\times 15-1200\times 20 \\ & =-6000\text{ Ns} \end{align}</math> Use the formula ...)
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Revision as of 17:02, 14 September 2010

First find the impulse (change in momentum).

Impulse =mvmu120015120020=6000 Ns


Use the formula

Impulse =Ft


6000=F20F=300 N