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A box slides down a 33° ramp with an acceleration of 1.38 m/s2. Determine the coefficient of kinetic friction between the box and the ramp.

  • physics -

    Component of force along the plane (downward), F
    = mgsin(θ)

    Let frictional force be ff, then

    Net acceleration
    (F-ff)/m = 1.38 m/s²

    Solve for μ

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