一輛車子以速度v公尺/秒作直線運動 - 運動
By Christine
at 2009-01-24T00:00
at 2009-01-24T00:00
Table of Contents
一輛車子以速度v公尺/秒作直線運動,發現前方有障礙物,因而緊急煞車,自踩煞車開始,假使車子等減速行駛,經t秒車子停止,下列敘述何者正確?(A)在這t秒內車行距離1/2vt(B)在這t秒內車行距離1/2vt²(C)煞車期間平均加速度-1/2v(D)煞車期間平均加速度-v/2t請大家幫我解答謝謝~~
Tags:
運動
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By Yedda
at 2009-01-25T20:27
at 2009-01-25T20:27
By Liam
at 2009-01-24T02:07
at 2009-01-24T02:07
By Zenobia
at 2009-01-28T09:59
at 2009-01-28T09:59
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