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看图的右侧,小车在图中为1.2cm,实际0.6m,1.2/60=1:50
Δs从左侧车尾至右侧车尾共10cm.
v1 = v0 + aT
s1 = v0*T + 1/2 aT^2
s2 = v1*T + 1/2 aT^2
故
Δs = s2 - s1
= T(v1 - v0)
= T(v0 + aT - v0)
= aT^2
http://zhidao.baidu.com/question/216382805.html
1年前
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