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physics

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Two people pull as hard as they can on ropes attached to a 200 kg boat. If they pull in the same direction, the boat has an acceleration of 1.44 m/s2 to the right. If they pull in opposite directions, the boat has an acceleration of 0.518 m/s2 to the left. What is the force exerted by each person on the boat? (Disregard any other forces on the boat.)

Smaller N

Larger N

  • physics - ,

    n+N=200*1.44
    N-n=200(.518)
    add the equations
    2N=200(1.44 +.518)
    solve for N
    N=100(1.96)=196N

    n=200*1.44-195=288-196=92 N

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