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Judy, by chance, spots a potted plant falling outside the window at 3.35 m/s. Further down the same building, Judy’s boyfriend clocks the pot at 71 m/s. How far apart are the friends? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m?

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sebasacevedop

Answer:

256.62 m

Explanation: We have a free fall motion, we know the initial speed as well as the final speed. Therefore we can find the distance that the plant travels, from Judy to her boyfriend, which tells us how far apart they are.

[tex]x=\frac{v_{f}^2-v_{o}^2}{2a}\\x=\frac{(71 m/s)^2-(3.35 m/s)^2}{2*9.8m/s^2}\\x= 256.62 m[/tex]

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