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the initial velocity of a 4 kg box is 11 m/s, due west. after the box slides 4 m horizontally its speed is 1.5 m/s. determine the magnitude and the direction of the non conservative force acting on the box as it slides.

  • physics - ,

    KE2-KE1=W(fr) =F•s
    mv₂²/2 - mv₁²/2 = F•s
    Solve for F

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