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two people carry a heavy electric motor by placing it on a light board 2m person lifts at one end with a force of 700N, and the other lifts the opposite end with a force of 400N.Calculate the weight of the motor and determine where its center of Gravity is Located

  • physics - ,

    The sums of torques respectively the edges of the board are:
    W•x-400•2 = 0
    W• (2-x) -700•2=0
    2W-W•x -1400 = 0
    W=1100 N
    x=800/W =0.73 m

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