上升到一半速度:v-gt2=v/2
初速度与高度的关系:v=√(2gh)
解得:
t1=(√2-1)√(h/g)=0.414√(h/g)
t2=√2/2√(h/g)=0.707√(h/g)
即t1
推荐
猜你喜欢
- 太阳是从哪个方向升起的?
- 一道关于力的平衡的物理题
- The idea was that trapped greenhouse gases in the atmospheres of Earth and Mars mighthave caused temperatures to raise e
- 2tan(x)× cos²(x)怎么算
- She often takes_____part in the school`activities.为什么填an active
- 换英语单词:(Rain was pouring down) when they walked they walked out of the theatre.
- me,a,pass,brush,please连词成句
- 写出以下物质的化学式
