8．如图5 4所示细绳的一端悬于o点另一端系一小球在o点正下方a处有一钉子细绳在碰到钉子前后的瞬间相比 A．小球的线速度变大 B Sketch Coloring Page

8．如图5 4所示细绳的一端悬于o点另一端系一小球在o点正下方a处有一钉子细绳在碰到钉子前后的瞬间相比 A．小球的线速度变大 B Template

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tomski8．如图5 4所示细绳的一端悬于o点另一端系一小球在o点正下方a处有一钉子细绳在碰到钉子前后的瞬间相比 a．小球的线速度变大 coloring

8．如图5 4所示细绳的一端悬于O点另一端系一小球在O点正下方A处有一钉子细绳在碰到钉子前后的瞬间相比 A．小球的线速度变大 B sketch template

6．如图4所示小球在一细绳的牵引下在光�桌面上绕绳的另一端O作匀速圆�运动关于小球的受力情况下列说法中正确的是 A．受重力支持力和� sketch template

5．如图所示一小球用细绳悬挂于O点将其拉离竖直位置一个角度后释放则小球沿以O点为圆心的圆弧ABC�动相当于圆�运动的一部分当小球 sketch template

如图所示A、B两小球分别用轻质细绳L1和轻弹簧系在天花板上A、B两小球之间用一轻质细绳L2连接细绳L1、弹簧与竖直方�的夹角均为θ细绳 sketch template

如图所示两根长度不同的细绳一端固定于O点另一端各系一个相同的小铁球两小球恰好在同一水平面做匀速圆�运动则A．它们所需的�心力大小相等 sketch template

如图所示长为5m的细绳的两端分别系于竖立在地面上相距为4m的两杆顶端AB绳上挂一个光�的轻质挂钩它钩着一个重为12N的物体平衡时绳中 sketch template

如图所示是某绳波形成过程的示意图质点1在外力作用下垂直直线方�做简谐运动带动234 各个质点依次上下振动把振动从绳的左端传到右端 sketch template

一轮复习：动态平衡问题解题技巧知乎 sketch template

30．如图所示用�轮组提起重G的物体绳子自由端拉力为F重物以速度勘匀速上升不计�擦和绳重则 1�轮组的机械效率为 2 sketch template

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如图所示用细绳一端系着的质量为M=06kg的物体A静止在水平转盘上细绳另一端通过转盘中心的光�小孔O吊着质量为m=03kg的小球BA sketch template

如图甲所示轮轴实质是一种杠杆．小捷同学为了探究轮轴的平衡条件进行了如下实验实验一如图乙所示重物G通过细绳绕在轴上在轮的边缘沿切线 sketch template

如图所示长度为L的细绳上端固定在天花板上O点下端拴着质量为m的小球．当把细绳拉直时细绳与竖直线的夹角为θ=60°此时小球静止于光�的 sketch template

如图所示甲乙两个�轮组通过细绳悬挂在天花板上用�轮组匀速提升重为600N的物体时悬挂甲乙两�轮组的细绳所受的拉力分别为F甲F乙 sketch template

如图所示小车内一根轻质弹簧沿竖直方�和一条与竖直方�成α角的细绳拴接一小球．当小车和小球相对静止一起在水平面上运动时下列说法正确的是 sketch template

如图所示在倾角为α=30°的光�斜面上有一根长为L=08m的细绳一端固定在O点另一端系一质量为m=02kg的小球沿斜面做圆�运动 sketch template

百度教育 sketch template

5．如图3所示细杆的一端与一小球相连可绕过O点的水平轴自由转动现给小球一初速度使它做圆�运动图中ab分别表示 小球轨道的最低点和 sketch template

6．如图4所示小球在一细绳的牵引下在光�桌面上绕绳的另一端O作匀速圆�运动关于小球的受力情况下列说法中正确的是 A．受重力支持力和� sketch template

$如图所示一小球质量为m用长为L的细绳悬于O点在O点的正下方$frac{L}{2}$处钉有一根长钉把小球�右拉离最低位置使悬线偏离 sketch template$

百度教育 sketch template

如图所示细绳的一端固定于O点另一端系一小球在O点的正下方A处有一钉子现使小球由高处�下当绳子�到竖直位置时与钉子相碰而绕A点运动则 sketch template

5．如图3所示细杆的一端与一小球相连可绕过O点的水平轴自由转动现给小球一初速度使它做圆�运动图中ab分别表示 小球轨道的最低点和 sketch template

如图所示将�料绳一端扎紧另一端尽可能撕成更多的细丝用手从上�下捋几次观察到细丝蓬散开来是因为细丝与手�擦后带上种电荷而相互 sketch template

题目如图所示用一根细绳和一根轻直杆组成三角支架绳的一端绕在手指上杆的一端顶在掌心当A处挂上重物时绳与杆对手指和手掌均有作用对这 sketch template

百度教育 sketch template

如图所示用一根长为L的细绳一端固定在O点另一端悬挂质量为m的小球A为使细绳与竖直方�夹30°角且绷紧小球A处于静止则需对小球施加的 sketch template

13．如图6所示长度为L＝1m的细绳一端固定于O点另一端竖直悬吊一个50kg的小球若用水平恒力F＝500N拉小球当悬绳拉到竖直方�成 sketch template

如图所示“验证力的平行四边形定则实验中请根据需要补充完整其实验步骤1用图钉把白纸固定于方木板上把橡皮筋的一端固定2在橡皮筋 sketch template

如图所示长度为1m的均匀棒AB通过细绳悬挂在光�的竖直墙面上C点细绳与AB棒连接于D点BD的长度为035m不考�棒的粗细平衡时AB sketch template

如图所示小球用细绳系住放在倾角为θ的光�斜面上当细绳由水平方�逐渐�上偏移时斜面对小球的支持力将 A．逐渐增大B．逐渐减小C．先增大 sketch template

如图所示质量为m的圆环套在光�的水平直杆上一轻绳一端连接在环上另一端连有一质量也为m的小球绳长为L将球放在一定高度绳刚好拉直且绳与 sketch template

8．如图所示用一根长L的细绳一端固定在O点另一端悬挂质量为m的小球A为使细绳与竖直方�夹300角且绷紧小球A处于静止对小球施加的最小 sketch template

4． 如图所示小球被细绳系住放在倾角为的光�斜面上当绳子从水平方�逐渐�上偏移时细绳上的拉力将——青夏教育精英家教�—— sketch template

如图所示用一连接体一端与一小球相连绕过O点的水平轴在竖直平面内做圆�运动设轨道半径为r图中PQ两点分别表示小球轨道的最高点和最低点 sketch template

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