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8 July, 04:18

Using a pulley system with a mechanical advantage of 15, how large and imput force would be needed to lift a piano weighing 345 N?

N = Fi

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Answers (1)
  1. 8 July, 04:42
    0
    5175 Newtons

    Explanation:

    We are given;

    Mechanical advantage is 15 Output force is 345 N

    We are required to calculate the work input;

    We need to know that mechanical advantage is the ratio of output force to input force. That is, mechanical advantage = Output force : input force Rearranging the formula;

    Input force = Output force : Mechanical advantage

    Therefore;

    Input force = 345 N * 15

    = 5175 Newtons

    Thus, the work input of a pulley system is 5175 N
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