Calculating car's velocity using skid marks | Motion in a straight line | Physics | Khan Academy

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After a crash, investigators determine the initial speed with which the car was moving, before it started skidding. Let's see how they do that!

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Created by Vibhor Pandey
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É impossível essa explicação estar correta. A fórmula não tem dimensões corretas. Em um lado temos velocidade (m/s) e do outro temos um número multiplicado por m^(1/2). As dimensões não batem. Ou a fórmula esta incorreta ou a explicação que está parcialmente errada.

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