What is kinetic energy? (article) | Khan Academy
https://www.khanacademy.org/science/physics/work-and-energy/work-and-energy-tutorial/a/what-is-kinetic-energy
WebTo calculate kinetic energy, we follow the reasoning outlined above and begin by finding the work done, W , by a force, F , in a simple example. Consider a box of mass m being pushed through a distance d along a surface by a force parallel to that surface. As we learned earlier. W = F ⋅ d = m · a · d. Huh? I'm lost already.
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