Answer to Question #287577 in Physics for jem

Question #287577

A coin is placed at the top of a two-story building, having a potential energy of 20 J. If it has a mass of 2.50 grams, what would be its velocity upon hitting the ground?

Expert's answer

The velocity upon hitting the ground will be

"v=\\sqrt{2E\/m}=\\sqrt{2\u00b720\/0.0025}=126\\text{ m\/s}."

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