物理-直線運動問題 - 運動
By Hardy
at 2005-09-05T00:00
at 2005-09-05T00:00
Table of Contents
第一題:物體沿直線運動其位置時間之關係為X=4+2t-t2(X:m;t:秒),則(A)初速度為2m/sec(B)為等加速運動(C)加速度為-1m/sec2(D)第二秒內之平均速度為-1m/sec(E)第三秒末之速度為-4m/sec答案為A.B.D.E。能否解說一下ACDE選項的計算方式??第二題:某物作自由落體運動,若不考慮空氣阻力,則第三秒內的位移與第三秒內的位�
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運動
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By Genevieve
at 2005-09-05T23:47
at 2005-09-05T23:47
By Dorothy
at 2005-09-07T21:47
at 2005-09-07T21:47
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at 2005-09-05T04:12
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By Skylar Davis
at 2005-09-07T12:01
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