Answer to Question #145936 in Optics for Ellie

Question #145936

A hammer falls from a shelf and strikes the ground at 12 ms . Using kinetic
and potential energies in the calculation, determine what height did it fell from.

Expert's answer

Using energy conservation

"\\frac12mv^2=mgh\\\\0.5\\times12\\times12=10\\times h\\\\h=7.2m"

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