Need physics help with a 2 kg book that is away on a shelf that is 3 m high.

label Physics
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Nov 18th, 2015

Thank you for the opportunity to help you with your question!

GivenUnknownEquationSubstituteSolve
m=2kg, h=3mEnergyGPE=mghGPE=(2kg)*(9.8m/s^2)*(3m)58.8J

You would use 58.8 J of energy. 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 18th, 2015

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