名校
1 . 2023年的春节,人们积蓄已久的出行热情似乎在这一刻被引爆,让旅游业终于迎来真正意义上的“触底反弹”.如图是某旅游景区中的网红景点的路线图,景点A处下山至
处有两种路径:一种是从A沿直线步行到
,另一种是先从A沿索道乘缆车到B,然后从B 沿直线步行到
.现有甲、乙两位游客从A处下山,甲沿
匀速步行,速度为
.在甲出发
后,乙从A乘缆车到B ,在B 处停留
后,再从B 匀速步行到
.假设缆车匀速直线运行的速度为
,索道
长为
,经测量,
.
的长;
(2)乙出发多少分钟后,乙在缆车上与甲的距离最短?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fa315234c42ac12a1de359c1f98a77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9ef98b758ca2e2ee0f682dca323848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17166d730bec1b4ee345727b42265ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ed98bbd61c59726cf5e96bec173b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50073d90fe64d49ac2c16047266f64c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe43f68cd6f2851673b69f0fc0e243b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)乙出发多少分钟后,乙在缆车上与甲的距离最短?
您最近一年使用:0次
2023-04-20更新
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529次组卷
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8卷引用:甘肃省武威市天祝一中、民勤一中、古浪一中2022-2023学年高一下学期期中数学试题
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2 . 一艘从南京驶往重庆的客船“东方之星”在长江中游湖北监利水域遭遇龙卷风翻沉.如图所示,
是江面上位于东西方向相距
千米的两个观测点.现位于
点北偏东
,
点北偏西
的客船东方之星(
点)发出求救信号,位于
点南偏西
且与
点相距
千米的
点的救援船立即前往营救,其航行速度为
千米每小时,该救援船到达
点需要多长时间?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0db9e49d83f915d99045ee8a98389dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/395424943f098d2c9a83d80039018429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/30/c5513678-3a86-4aee-aaaf-77dcfde4c3e5.png?resizew=168)
您最近一年使用:0次
2023-03-29更新
|
561次组卷
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2卷引用:甘肃省兰州第一中学2022-2023学年高一下学期3月月考数学试题