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Homework Help: Calculate useful power output

  1. Oct 11, 2015 #1
    image.jpg 1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution

    I feel like I did something incorrect because I didn't use the vertical distance at all. If I'm wrong, does it have something to do with the displacement?
  2. jcsd
  3. Oct 11, 2015 #2

    Mister T

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    Science Advisor
    Gold Member

    You calculated the work done to fling the sand at a speed of 2.0 m/s from level ground. You need to add in the work done to lift the sand. Hint: the force is constant.
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