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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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light falling on a completely reflecting friction less mirror

If you had a perfectly reflective mirror whose face was perpendicular to the ground and was kept on a friction less track on the ground, and you shined a flashlight on it, what would happen? Would …
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Work done against a resistive force

the resistive force is not "used", it comes on its own (these forces are found in nature as it is). they are generally unwanted but may be necessary sometimes. The best example is the force of frictio …
humble's user avatar
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