Could be used at loca on c the ground would be the

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Unformatted text preview: Once the posi-on is chosen, it must remain fixed for the en-re problem –  Choose a convenient loca-on for the zero reference height •  OUen the Earth’s surface •  May be some other point suggested by the problem •  At loca-on A, the desk may be the convenient reference level •  At loca-on B, the floor could be used •  At loca-on C, the ground would be the most logical reference level •  The choice is arbitrary, though Conserva-on of Mechanical Energy •  Conserva-on in general –  To say a physical quan-ty...
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This document was uploaded on 01/14/2014.

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