行驶中的汽车遇到紧急情况需急刹车时,行驶路程
与时间
的函数关系式为
,紧急刹车后由于惯性汽车要滑行____________ m才能停下来.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dd602a7c31f2c2f5786031980776db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fb80b591b497d8d7a6d8592160de44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e5415da89c063bb75170f6e59d6d619.png)
更新时间:2023-11-06 17:27:50
|
相似题推荐
填空题
|
适中
(0.65)
【推荐1】如图,四边形
的两条对角线互相垂直,
,则四边形
的面积最大值是_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed9d72c0c6d207f6051b4df6ca410c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/106d03ba-380a-4470-983b-69e19ec9011b.png?resizew=106)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】已知二次函数
,当
时,函数y的最大值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd0a00ad98203e10d12fc3ee5e56e50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd45f8ebfef773a08875dfdb1925b20.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐1】一个水杯竖直放置时的纵向截面如图1所示,其左右轮廓线
都是同一条抛物线的一部分,
都与水面、桌面平行,
,水杯高度为
,当水面高度为
时,水面宽度为
,如图2先把水杯盛满水,再将水杯绕
点倾斜倒出部分水,如图3,当倾斜角
时,杯中水面
与桌面
平行.则此时水面
的值是_________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3c032441543354c154ee67d744abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c4cd264c97c1f261229925cc5a6761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171cdf3bf78458a2daf6b5596e6ccbec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689ff84e2d7f52c7446ef789a54557da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd6f4250ca6b1b9bce234a01f00d44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e44cbecd073e01f98aa75b3f16e8b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f80a9b3e17fca568e05477eaf317a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/bc95d62b-ac3e-43f0-ada7-a1e5c998a90e.png?resizew=500)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】如图,一款落地灯的灯柱
垂直于水平地面
,高度为1.6米,支架部分的形状为开口向下的抛物线,其顶点
距灯柱
的水平距离为0.8米,距地面的高度为2.4米,灯罩
距灯柱
的水平距离为1.4米,则灯罩顶端D距地面的高度为______ 米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2020/4/24/2448427692490752/2449129126051842/STEM/c091b9db75a9447f87303f71a55d81b0.png?resizew=125)
您最近一年使用:0次