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範例:固定力作功與張力

如右圖所示，質量4kg之物體靜置於光滑平面上，受一質量不計之繩子繫著，繩繞過無摩擦之定滑輪，他端施一10Nt向下之定力拉動之，使物體沿光滑水平面由A點滑到B，則施力作功若干焦耳?[85北聯]

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Posted in 功與變力作功.

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By admin – 2009 年 03 月 25 日

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