the goat weighs 900 N and is 1 meter from the fulcrum. The strongman pulls down on the lever 3 meters from the fulcrum. What is the smallest

Question

the goat weighs 900 N and is 1 meter from the fulcrum. The strongman pulls down on the lever 3 meters from the fulcrum. What is the smallest effort that the strongman can use to lift the goat.

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Đan Thu 4 years 2021-07-18T21:39:02+00:00 2 Answers 65 views 0

Answers ( )

  1. thuthao
    0
    2021-07-18T21:40:15+00:00
    Reply

    Answer:

    Just over 300 N

    Explanation:

    Just over 300 N

    Explanation: The goat is 1 meter from the fulcrum, and the strongman is 3 meters from the fulcrum. The mechanical advantage of the lever will be 3. The effort needed to lift the goat will be just over one-third the weight of the goat, in this case just over 300 newtons.

  2. thnahdat
    0
    2021-07-18T21:40:39+00:00
    Reply

    Answer: The smallest effort = 300N

    Explanation:

    Using one of the condition for the attainment of equilibrium:

    Clockwise moment = anticlockwise moments

    900 × 1 = 3 × M

    Where M = the weight of the strong man

    3M = 900

    M = 900/3 = 300N

    Therefore, 300N is the smallest effort that the strongman can use to lift the goat

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