Differences
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| Both sides previous revision Previous revision Next revision | Previous revision Next revisionBoth sides next revision | ||
| 183_notes:examples:sliding_to_a_stop [2014/09/22 04:33] – pwirving | 183_notes:examples:sliding_to_a_stop [2014/09/22 04:38] – pwirving | ||
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| Line 37: | Line 37: | ||
| $ y: \Delta p_y = (F_N - mg)\Delta t = 0 $ | $ y: \Delta p_y = (F_N - mg)\Delta t = 0 $ | ||
| + | |||
| + | Write equation of y direction in terms of $F_N$ to sub into x direction equation. | ||
| $ (F_N - mg) \Delta t = 0 $ | $ (F_N - mg) \Delta t = 0 $ | ||
| Line 71: | Line 73: | ||
| $ \Delta x/\Delta t = ((6 + 0)/2) m/s = 3m/s $ | $ \Delta x/\Delta t = ((6 + 0)/2) m/s = 3m/s $ | ||
| + | |||
| + | Sub in for $\Delta t$ and solve for $\Delta x$ | ||
| $ \Delta x = (3 m/s)(1.53 s) = 4.5m $ | $ \Delta x = (3 m/s)(1.53 s) = 4.5m $ | ||