有關力與運動的幾個問題 - 運動
By Xanthe
at 2010-08-09T00:00
at 2010-08-09T00:00
Table of Contents
以下幾個題目請各位幫我解答:(要詳解喔)1.假設由高空落下的雨滴受到三個力作用,分別為重力(W)ˋ空氣阻力(R)ˋ空氣浮力(B),下列關於這三個方向的敘述,何者正確?(A)W=R+B(B)B=W+R(C)R=W+B(D)W=R=B2.小禹騎腳踏車經過一片平坦的草地,若他停止採腳踏板,腳踏車的速率逐漸慢下來,關於腳踏車運動的敘述,下列何者正確?
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運動
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By Zanna
at 2010-08-09T07:57
at 2010-08-09T07:57
By Zanna
at 2010-08-10T07:49
at 2010-08-10T07:49
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