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Homework Help: Energy problem

  1. Nov 4, 2006 #1
    How much work is required for a 50 kg student to climb a 10 meter ladder?

    i know that work = f x d but it doesnt tell the newton so what do i multiply with 10 m?
  2. jcsd
  3. Nov 4, 2006 #2


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    The force of gravity acting on an object is its weight. Weight=mg. If you multiply the 50 kg student's mass by 9.8m/s^2 (g is the acceleration of gravity equal to 9.8m/s^2 on earth), you get the student's weight in Newtons (1 kg(m)/s^2 = 1 Newton). So how much work is required?
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