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1 . 如图是一个摩天轮的示意图,该摩天轮半径为
圆上最低点与地面距离为
且摩天轮
转动一圈,图中
与地面垂直,游客从
处进入座舱,逆时针转动
后到达
处,设
点到地面的距离为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63446fe42b0d4246148b972e73358ea3.png)
表示成关于
的函数;
(2)由于建筑物的阻挡,当座舱离地面的高度不低于33m时,乘客方可观看远处的无人机表演,已知无人机表演共持续
求乘坐摩天轮可观看无人机表演的总时长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e13f5e3eefc4706a3a7ca62f16ff3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9826fca897cb24b215fc7b6f6e79cb20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a628160b971aca3528d447882fa45fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cec183057249005d5f234c4bea5de7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63446fe42b0d4246148b972e73358ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)由于建筑物的阻挡,当座舱离地面的高度不低于33m时,乘客方可观看远处的无人机表演,已知无人机表演共持续
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50008f31998b964fd8fddfda9cec399a.png)
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