如圖所示物重W靜摩擦係數3/4,施以斜下方之外力F,則欲推動此物體所須最小值為若干?
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如圖所示物重W靜摩擦係數3/4,施以斜下方之外力F,則欲推動此物體所須最小值為若干?
Posted in 摩擦力.
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By admin – 2010 年 10 月 05 日
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