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A flight attendent pulls her 78.6 N flight bag a distance of 344 m along a level airport floor at a constant velocity. The force she exerts is 44.8 N at an angle of 64.2 degrees above the horizontal.
Find the coefficient of kinetic friction between the flight bag and the floor?
Please furnish calculations.

  • physics -

    The exerted force along the floor direction is 44.8 cos 64.2 = 19.5 N
    That equals the bag's weight times the kinetic friction coefficient, Uk, since there is no acceleration.

    19.5 = 78.6 Uk
    Solve for Uk

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