帮一下忙,谢谢

2024-12-22 00:17:30
推荐回答(1个)
回答1:

设加速时间t1 速度v
v=a1t1=a2(t-t1)
t1=a2t/(a1+a2)
v=a1a2t/(a1+a2)
s=vt/2=1/2a1a2t^2/(a1+a2)
运动总位移s=1/2a1a2t^2/(a1+a2)