Science - Physics

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A meter stick is balanced at the 50-cm mark. You tie a 20-N weight at the 20-cm mark. At which mark should a 30-N weight be placed so that the meter stick will again be balanced?

  • Science - Physics -

    Sum moments about the 50 cm mark.

    20*30cm=30*X

    x=20 cm from the fulcrum, or at the 70cm mark.

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