V=a1t1=a2t2
t2=a1t1/a2
T=t1+t2=t1(1+a1/a2)
t1=T(1+a1/a2)
T=S/V平=s/(v/2)=2s/a1t1==2s/[a1T(1+a1/a2)]
2s=a1T^2(1+a1/a2)
T=根号[2s/(1+a1/a2)a1]
V=a1t1=a2t2
t2=a1t1/a2
T=t1+t2=t1(1+a1/a2)
t1=T(1+a1/a2)
T=S/V平=s/(v/2)=2s/a1t1==2s/[a1T(1+a1/a2)]
2s=a1T^2(1+a1/a2)
T=根号[2s/(1+a1/a2)a1]