设楼顶距窗台顶为h米距离,则楼顶距窗台底部为h+1米则
h=gt²/2①
h+1=g(t+0.1)²/2②
②-①得到
1=t+0.05
t=0.95s
h=gt²/2=5*0.95²=361/80=4.5125mл��