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Physics(Please respond)

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A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates. A 83.9-kg water-skier has an initial speed of 6.3 m/s. Later, the speed increases to 10.1 m/s. Determine the work done by the net external force acting on the skier.

Would I use the equation

KEf-KE0 = 1/2mvf^2 - 1/2mv0^2 ?

  • Physics(Please respond) -

    work = change in Ke
    = (1/2) m (V2^2 - V1^2)

  • Physics(Please respond) -

    so I did (1/2)(83.9)(10.1-6.3) and got 159.41 J.Is this correct?

  • Physics(Please respond) -

    Disregard question.

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