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範例:功與動力學-等速運動

一人以繩拖曳質量為M kg的雪橇,使其等速度前進,若雪橇和地面間的摩擦係數為μk,拉力與水平成θ,問前進ΔS時,此人對雪橇所作之功為若干?

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Posted in 功與變力作功.

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By 張慶堂 – 2021 年 05 月 03 日

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