1 year ago

A system where friction is considered and calculated

Physics

1 answer:

katrin [286]1 year ago

7 0

Answer:

the answer is B :)

Explanation:

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Citrus2011 [14]

Answer:

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u = Initial velocity

v = Final velocity

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$\frac{1}{2}mv^2+mgh_f=\frac{1}{2}mu^2+mgh_i\\\Rightarrow\frac{1}{2}mv^2+mg0=\frac{1}{2}m0^2+mgh_i\\\Rightarrow \frac{1}{2}mv^2=mgh_i\\\Rightarrow v=\sqrt{2gh_i}$

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