Physics

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A 74-kg canoeist stands in the middle of her 18-kg canoe. The canoe is 3.0 m long, and the end that is closest to land is 2.5 m from the shore. The canoeist now walks toward the shore until she comes to the end of the canoe.

calculate the distance from the canoeist to shore.

  • Physics -

    cg of system does not move
    originally cg is 1.5 m + 2.5 m = 4 m from shore
    so
    (74 + 18) 4 = 74 x + 18 (x+1.5)

    368 = 74 x + 18 x + 32.4

    335.6 = 92 x

    x = 3.65

    did not get much closer but pushed the canoe back a lot.

  • Physics -

    sa

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