本题目来源于试卷: IB MAI HL Functions Topic 2.4 Transformations，类别为 IB数学
[问答题]
A soccer ball is kicked from tj1 y2y0xfyc5*yvt. qqhe ground such thqswl n.f*pgr(ed5lyn (+l65 aat its path can be modelled by the functir6( l + ln5anw.ds(pqgf yl*e5on
$h(d)=d−\frac{d^2}{6}$
where ℎh is the height above ground level in meters, and d is the horizontal distance the ball travels, also in meters.
1.Find the distance travelled by the ball when it hits the ground.
2.Find the maximum height the ball reaches.
The soccer player now practices kicking the ball shorter, so that it travels half the vertical height and half the horizontal distance as the previous kick.
3.Determine the height function, ℎ2h2, that describes this new trajectory.
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