physics

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a man has only 4 simple pulleys to lift a heavy load of 6000N. in roder to lift the load easily, he combines the pulleys (3 moveable, 1 fixed). given that the frictional forces are 300N, what force must he apply in order to lift the load?

  • physics -

    The ideal mechanical advantage is 4, the number of pulleys. The ideal force required to lift 6000N would be 6000/4 = 1500 N.

    Add 300 N to that for frictional resistance.

  • physics -

    ur wrong

  • physics -

    1500N

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