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| Both sides previous revision Previous revision Next revision | Previous revision | ||
| 183_notes:examples:deer_slug_example [2014/10/01 05:20] – pwirving | 183_notes:examples:deer_slug_example [2014/10/01 05:24] (current) – pwirving | ||
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| We can relate the momentum before to the momentum after then giving us the following equation. | We can relate the momentum before to the momentum after then giving us the following equation. | ||
| - | $0 = M_G * V_G + m_S * V_S \longrightarrow M_G * V_G$ is negative and $m_S * V_S$ is positive | + | $0 = M_G * V_G + m_S * V_S \longrightarrow M_G * V_G$ is negative and $m_S * V_S$ is positive |
| + | |||
| + | To find the force acting on the shoulder of the shooter me need to know $V_G$ in order to find change in momentum for the gun and relate this to the force using $\vec{F}_{net} = \dfrac{\Delta\vec{p}}{\Delta t}$. Rearrange the previous equation. | ||
| $V_G = {\dfrac{-m_s}{M_G}} V_S$ | $V_G = {\dfrac{-m_s}{M_G}} V_S$ | ||
| + | |||
| + | Fill in the values for the corresponding variables. | ||
| $V_G = - {\dfrac{0.22kg}{3.5kg}}{500m/ | $V_G = - {\dfrac{0.22kg}{3.5kg}}{500m/ | ||
| - | Need to find what kind of force that is on your shoulder. | + | Use the value found for $V_G$ to find the change in momentum and hence find what kind of force that is on your shoulder. |
| $\vec{F}_{net} = \dfrac{\Delta\vec{p}}{\Delta t}$ | $\vec{F}_{net} = \dfrac{\Delta\vec{p}}{\Delta t}$ | ||
| + | |||
| + | Fill in values for known variables. | ||
| $\vec{F}_{net} =\dfrac{(3.5kg)(-31.4m/ | $\vec{F}_{net} =\dfrac{(3.5kg)(-31.4m/ | ||