ch08-p029 - 29 The reference point for the gravitational...

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29. The reference point for the gravitational potential energy U g (and height h ) is at the block when the spring is maximally compressed. When the block is moving to its highest point, it is first accelerated by the spring; later, it separates from the spring and finally reaches a point where its speed v f is (momentarily) zero. The x axis is along the incline, pointing uphill (so x 0 for the initial compression is negative-valued); its origin is at the relaxed position of the spring. We use SI units, so k = 1960 N/m and x 0 = –0.200 m.
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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