The rotational tendency of a car under braking is due to identical physics. ... Brakes work by converting the energy of motion, kinetic energy, into the energy of heat in the brakes. ... The reason is that kinetic energy goes up as the square of the speed. Going at twice the speed means you have four times the kinetic energy because 4 = 22. The exact formula for kinetic energy is ½mv2, where m is the mass of an object and v is its speed. ...

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