名校
1 . 如图所示,O点受到
和
两个力的作用,其中力
沿OC方向,力
沿OD方向.已知这两个力的合力
,用作图法求出
和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
__ ,并把
和
的大小填在横线处;作图时要求以
长度表示
为标度。
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/689c0295-0e47-4646-bd4f-a6d0e57e7a70.png?resizew=285)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87228e96b46f2b2f86731eb8aa8b6bff.png)
______ N;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54b9df12c1d7ee9a6d8069162b81e58.png)
______ N。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52e8354bc7ef547862bb2358002945db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048b61a5fb5f420c6d7de88db5bc3aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01f94343023e64837bb0e661dba0130.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/689c0295-0e47-4646-bd4f-a6d0e57e7a70.png?resizew=285)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87228e96b46f2b2f86731eb8aa8b6bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54b9df12c1d7ee9a6d8069162b81e58.png)
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2 . 某同学在验证两个互成角度的力的合成规律时,橡皮条一端固定,一端系有轻质小圆环,用拉力
和
共同拉动小圆环使其静止于O点,实验记录纸如图所示,拉力
和
的方向分别过
点和
点,大小分别为
、
。画出
和
的图示__ ,并利用作图法求出合力F。
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/e14900d7-0d9d-4260-bf6a-ec4f0310350d.png?resizew=189)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361d9a5cd09197796fc35ed330451a85.png)
_______ N,与
之间夹角为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b657cfa91b6394e4b00fa385a2c0149.png)
______ 。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22c3d0cc4e8923deac077ae2fcb03b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa0725f252aa60ad6775774bf42ecf15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/e14900d7-0d9d-4260-bf6a-ec4f0310350d.png?resizew=189)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361d9a5cd09197796fc35ed330451a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b657cfa91b6394e4b00fa385a2c0149.png)
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3 . 沿OA方向画一个15N的力,它的一个分力方向沿OB,大小为6N,用作图法画出另一个分力的方向,并求出这个分力的大小.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/4e475be8-4313-42ad-b91e-85e55b8253a6.png?resizew=168)
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4 . 三个处于直角坐标系xoy中的共点力的大小方向如图所示.求它们的合力F合的大小和方向。
![](https://img.xkw.com/dksih/QBM/2020/2/1/2389798812844032/2390181689434112/STEM/29828c9d-bee4-4a21-8d8d-1bf2a66bf007.png?resizew=149)
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2020-02-02更新
|
646次组卷
|
2卷引用:福建省三明市普通高中2019-2020学年高一上学期期末质量检测物理试题
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5 . 已知两共点力大小分别为F1=3.0N,F2=2.5N,其方向如图所示,请用1cm代表1N,用作图法作出这两个共点力的合力,并可由图可量出其大小为________ N.(保留一位小数)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/27/17591731-49b2-42f2-98b5-3d7d7a810904.png?resizew=167)
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2019-12-13更新
|
333次组卷
|
2卷引用:福建省厦门第一中学2019-2020学年高一上学期期中模拟物理试题
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6 . 两个共点力
,
的方向如图虚线所示,画出两个力的图示,并用平行四边形定则作图求出合力的大小和方向.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ea52d41319ef0e9c9b8303c44cf998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4599e9175252836c8aa479ab04f717b.png)
![](https://img.xkw.com/dksih/QBM/2018/3/1/1893004747751424/1895021985366016/STEM/d62776ab3fc243fda89ecfb6cd695eaf.png?resizew=117)
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2018-03-04更新
|
517次组卷
|
4卷引用:福建省福州三中2019-2020学年高一上学期期中考试试题
福建省福州三中2019-2020学年高一上学期期中考试试题福建省清华附中福州学校2021-2022学年高一上学期期中物理试题北京师范大学附属中学2017-2018学年高一上学期期中考试物理试题(已下线)衔接点07 力的示意图和力的图示-2020年【衔接教材·暑假作业】初高中衔接物理
7 .
(1)画出下图中静止物体A所受的力的示意图(球面是光滑的,其他粗糙)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/a72b89b6-48f3-4ba4-a7fd-520d11960755.png?resizew=515)
(2)力F1=4 N,方向向东,力F2=3 N,方向向北,用力的图示求这两个力的合力的大小。
(1)画出下图中静止物体A所受的力的示意图(球面是光滑的,其他粗糙)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/a72b89b6-48f3-4ba4-a7fd-520d11960755.png?resizew=515)
(2)力F1=4 N,方向向东,力F2=3 N,方向向北,用力的图示求这两个力的合力的大小。
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