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physics

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A 2 kg metal plate slides down a 11-meter high slope. At the bottom its speed is 7.5 m/s. To the nearest Joule, what was the magnitude of the work done by friction?If the slope in the above problem is 22 degrees, what is the coefficient of friction?

  • physics -

    InitialPE-friction=final KE

    solve for friction work.

    Now, friction work= mu*mg*cosTheta*11meters
    solve for mu.

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