To hoist himself into a tree .

To hoist himself into a tree . a 72kg man ties one end of a nylon rope arund his waist and thows the other end over a branch of the . he then pulls downward on the free end of the rope with a force of 358N . Neglect any friction between the rope and the branch . and determine the man\'s upward acceleration .

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  • 1 0 年前
    最佳解答

    為了把他自己弄上樹,一個72公斤的男人將尼龍繩的一端綁在他的腰上,並將另一端繩頭丟出使其繞過一段樹枝。然後他以358N的力將未纏繞在自己身上的繩子的那端往下拉。不考慮繩子與樹枝的摩擦力,請算出此人的向上加速度。

    參考資料: 自己
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