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| 183_notes:examples:finalloccf [2014/07/11 03:02] – caballero | 183_notes:examples:finalloccf [2014/07/14 17:08] (current) – caballero | ||
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| ===== Example: Predicting the location of an object undergoing constant force motion ===== | ===== Example: Predicting the location of an object undergoing constant force motion ===== | ||
| - | The fan cart in the video below is observed to [[183_notes: | + | The fan cart in the video below is observed to [[183_notes: |
| === Facts ==== | === Facts ==== | ||
| Line 14: | Line 14: | ||
| * the force applied by the track (directly upward) | * the force applied by the track (directly upward) | ||
| * a frictional forces and air resistance that resist the motion | * a frictional forces and air resistance that resist the motion | ||
| - | * The acceleration due to gravity is 9.8 $\dfrac{m}{s^2} and is directed downward. | + | * The acceleration due to gravity is 9.8 $\dfrac{m}{s^2}$ and is directed downward. |
| === Lacking === | === Lacking === | ||
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| === Approximations & Assumptions === | === Approximations & Assumptions === | ||
| - | * Over the interval that we care about it, we will assume the net force is doesn' | + | * Over the interval that we care about it, we will assume the net force doesn' |
| * As a result, the motion occurs only in the horizontal direction. | * As a result, the motion occurs only in the horizontal direction. | ||
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| We can compute this displacement, | We can compute this displacement, | ||
| - | $$\Delta x_{cart} = (0 \dfrac{m}{s}) (2.2 s) + \dfrac{1}{2}\dfrac{0.45 N}{0.3kg}(2.2s)^2$$ | + | $$\Delta x_{cart} = (0 \dfrac{m}{s}) (2.2 s) + \dfrac{1}{2}\dfrac{0.45 N}{0.3kg}(2.2s)^2 |