假设AB的中点是C,AC=BC,假设质点的加速度是a,根据V^2 - Vo^2 = 2aX
从A到C Vc^2 - Vo^2 = 2a*AC
从C到B V^2 - Vc^2 = 2a*BC
得到 Vc^2 - Vo^2 = V^2 - Vc^2
2Vc^2 = Vo^2 + V^2
Vc = 根号下(Vo^2 + V^2 )
假设AB的中点是C,AC=BC,假设质点的加速度是a,根据V^2 - Vo^2 = 2aX
从A到C Vc^2 - Vo^2 = 2a*AC
从C到B V^2 - Vc^2 = 2a*BC
得到 Vc^2 - Vo^2 = V^2 - Vc^2
2Vc^2 = Vo^2 + V^2
Vc = 根号下(Vo^2 + V^2 )