求11.12题解答过程，要求用到高一公式，详细点最好！谢谢了哦
展开全部
11， Vt^2 - Vo^2 = 2aS, a = (100-4)/120 = 0.8
12, 设车长S, 2aS = Vt^2 - Vo^2 = 48
aS = 24
车中点为S/2
2a*S/2 = Vt^2 - Vo^2
Vt^2 = 24 + 1 = 25
Vt = 5m/s
12, 设车长S, 2aS = Vt^2 - Vo^2 = 48
aS = 24
车中点为S/2
2a*S/2 = Vt^2 - Vo^2
Vt^2 = 24 + 1 = 25
Vt = 5m/s
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
