如图,小明在打网球时,要使球恰好能打过网,且落点恰好在离网4米的位置上,则球拍击球的高度h为________ 米.(已知网高为0.8米,击球点到网的水平距离为3米)
![](https://img.xkw.com/dksih/QBM/2015/2/10/1573799214219264/1573799220363264/STEM/02ef3dfddcf944a18ae828eaa11d8122.png?resizew=238)
更新时间:2016-12-05 22:45:37
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