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March 27, 2017

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alever is used to lift a heavy load. when a to-n force pushes one end of the lever down 1.2m the load rises 0.2m. show the weight of the load is 300n

  • physical science - ,

    Check for probable typo:
    "a lever is used to lift a heavy load. when a 50-n force pushes one end of the lever down 1.2m the load rises 0.2m. show the weight of the load is 300n "
    Work done by 50 N force = 50*1.2 =60 N-m
    Work done by load = W*0.2
    Equate work done
    0.2W = 60
    W = 60/0.2 N
    = 300 N

  • physical science - ,

    A lever is used to lift a heavy load. When a 50 N force pushes one end of the lever down 1.2m the load rises .2m. Show the weight of the load is 300N

    ADVANTAGE of lever is input/output = 1.2/.2 = 6
    W=FD

    W=50N*6 (b/c of advantage) = 300N

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