s=v0t+1/2gt^2 =v0*0.16+1/2*10*0.16^2=2
v0=11.7
v0=at1
11.7=10*t1
t1=1.17
s1=1/2gt1^2=1/2*10*(1.17)^2=6.84m
你的思路对的,答案错了.