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15 May, 08:02

A ramp is used to load furniture onto a moving truck. The person does 1240 J of work pushing

the furniture up the ramp, and the ramp does 822 J of work. Calculate the efficiency of the

ramp.

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Answers (1)
  1. 15 May, 08:21
    0
    Answer: 66.29%

    Explanation:

    Efficiency = work output / work input x 100 %

    Work output = 822J

    Work input = 1240 L

    E = 822/1240 x 100

    E = 0.6629 x 100

    E = 66.29%
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