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Circular motion

A car crests a hill at an extreme velocity and "gets air". Explain the physics of why this is.

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When an object executes a circular path it needs a "cenripetal force" for doing so. This force acts on the object towards the centre of the circular path. In absence of such a force the object will not move on the circular path and will instead proceed along a straight line tangentially to the circular path. The ...

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Detailed explanation provided.