problem07_08

University Physics with Modern Physics with Mastering Physics (11th Edition)

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7.8: The speed is v and the kinetic energy is 4 K . The work done by friction is proportional to the normal force, and hence the mass, and so each term in Eq. (7.7) is proportional to the total mass of the crate, and the speed at the bottom is the same for any
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Unformatted text preview: mass. The kinetic energy is proportional to the mass, and for the same speed but four times the mass, the kinetic energy is quadrupled....
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