Δs=aT^2
s6-s5
=s5-s4
=s4-s3
=s3-s2
=s2-s1
=Δs
所以:
s6-s3=3Δs=3a1*T^2
s5-s2=3Δs=3a2*T^2
s4-s1=3Δs=3a3*T^2
所以:
a1=(s6-s3)/(3T^2)
a2=(s5-s2)/(3T^2)
a3=(s4-s1)/(3T^2)
最后求其平均值:a=(a1+a2+a3)/3
Δs=aT^2
s6-s5
=s5-s4
=s4-s3
=s3-s2
=s2-s1
=Δs
所以:
s6-s3=3Δs=3a1*T^2
s5-s2=3Δs=3a2*T^2
s4-s1=3Δs=3a3*T^2
所以:
a1=(s6-s3)/(3T^2)
a2=(s5-s2)/(3T^2)
a3=(s4-s1)/(3T^2)
最后求其平均值:a=(a1+a2+a3)/3