Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
弹道轨迹： h(d) = -0,05 d^2 + 5d 。抛物线形——顶点（最大射程）？
弹道轨迹： h(d) = -0,05 d^2 + 5d 。抛物线形——顶点（最大射程）？
Natural Language
Math Input
Extended Keyboard
