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183_notes:examples:finding_the_time_of_flight_of_a_projectile [2014/07/23 05:29] – pwirving | 183_notes:examples:finding_the_time_of_flight_of_a_projectile [2015/09/15 16:41] – [Solution] pwirving | ||
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Diagram of forces acting on bus once it leaves the road. | Diagram of forces acting on bus once it leaves the road. | ||
- | {{183_notes: | + | {{183_notes: |
General equation for position up date formula for constant force systems: | General equation for position up date formula for constant force systems: | ||
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$ -40 -v_{iy} \Delta{t} = -\dfrac{1}{2} {g} \Delta{t^2}$ | $ -40 -v_{iy} \Delta{t} = -\dfrac{1}{2} {g} \Delta{t^2}$ | ||
- | Cancel t's. | + | Sub in 0 for $v_{iy}$. |
$ -40 -v_{iy} = -\dfrac{1}{2} {g} \Delta{t}$ | $ -40 -v_{iy} = -\dfrac{1}{2} {g} \Delta{t}$ |