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![E_{k1}+E_{p1}=E_{k2}\\160 + 2500 = E_{k2}\\E_{k2}=2660 [J]](/tpl/images/0946/1405/5c08e.png)
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A rollercoaster car has 2500 J of potential energy and 160 J of
kinetic energy at the top of the fi...
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