impressed forces 中文意思是什麼
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Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it
如果物體處于靜止狀態或作勻速直線運動，只要沒有外力作用，物體將保持靜止狀態或勻速直線運動狀態。
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