V=atS=1/2at2V=√2asA=(vt-v0)/tvt=v0+ats= v0t+1/2at2vt2-v02=2as
Vt中=1/2(vt+v0)Vs中=根号下1/2(vt^2+v0^2)等时间段t,位移差=at^2
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