一物体做匀变速直线运动,第2s内位移是6m,第6s内位移是14m,
一物体做匀变速直线运动,第2s内位移是6m,第6s内位移是14m,
物理人气：761 ℃时间：2019-10-17 05:29:54
优质解答
Vo=1m/s a=2m/s²△S=aT²第2s与第6s间隔4T（S6-S2 =4aT²）14-6=4aT²（T=1）8=4aa=2m/s²得到第一秒内位移：S2-S1=aT² 6-S1=2 S1=4mS1= Vot' + at'²/2 Vo=3m/s
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