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183_notes:examples:sliding_to_a_stop [2014/09/22 04:29] – pwirving | 183_notes:examples:sliding_to_a_stop [2014/09/22 04:30] – pwirving | ||
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$ F_N = mg \, | $ F_N = mg \, | ||
- | Combining these two equations and substituting in mg for F_N and writing $ p_x = mv_x $, we get the following equation: | + | Combining these two equations and substituting in mg for $F_N$ and writing $ p_x = \Delta(mv_x) $, we get the following equation: |
$ \Delta(mv_x) = -mg\Delta t $ | $ \Delta(mv_x) = -mg\Delta t $ |