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Newtonian mechanics discusses the movement of classical bodies under the influence of forces by applying Newton’s three laws. For more general concepts, use [classical-mechanics]. For Newton’s description of gravity, use [newtonian-gravity].
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College Board Problem: Conservation of Momentum -> Conservation of Energy in a Spring
In my AP Physics C class today, we ran into a problem written by College Board whose answer we disputed. The problem is as such :
A block of mass $M=5.0 \ \mathrm{kg}$ is hanging at equilibrium from …