14．如图所示用细绳拉着小球a�上做加速运动小球ab间用弹簧相连二球的质量分别为m和2m加速度的大小为a若拉力f突然撤去则ab Sketch Coloring Page

14．如图所示用细绳拉着小球a�上做加速运动小球ab间用弹簧相连二球的质量分别为m和2m加速度的大小为a若拉力f突然撤去则ab Template

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tomski14．如图所示用细绳拉着小球a�上做加速运动小球ab间用弹簧相连二球的质量分别为m和2m加速度的大小为a若拉力f突然撤去则ab coloring

14．如图所示用细绳拉着小球A�上做加速运动小球AB间用弹簧相连二球的质量分别为m和2m加速度的大小为a若拉力F突然撤去则AB 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

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

22．如图所示用细绳将小球悬挂于天花板上球心到悬点间距为R球的质量为m现在把悬线拉成水平将小球由静止释放小球下落至最低点过程中用时T sketch template

如图所示用细绳系着一个小球使小球在水平面内做匀速圆�运动不计空气阻力关于小球受力说法正确的是A．只受重力 B．只受拉力C．受重力拉力 sketch template

如图所示用两个�轮分别匀速提升AB两个物体拉细绳的力F大小相等在相同时间内物体上升的距离也相等绳重及�擦不计�轮的质量小于物体的 sketch template

如图所示用细绳的一端栓在物体上再将细线绕过项端高度为h的定�轮用大小和方�都不变的拉力F作用在绳的另一端．用力拉细线使质量为M的物体 sketch template

如图所示用两个�轮分别匀速提升AB两个物体拉细绳的力F大小相等在相同时间内物体上升的距离也相等绳重及�擦不计�轮的质量小于物体的 sketch template

题目如图所示小球用细绳系住放置在倾角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FN和细绳对小球的拉力F将 sketch template

如图所示小球与光�斜面接触细绳绷直处于竖直方�则小球受到的作用力是A重力和细绳的拉力B重力细绳的拉力和斜面的支持力C重力和斜面 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

按照题目要求作图1如图甲所示用细绳悬挂的重50N的物体静止在空中画出它所受重力G和拉力F的示意图．2在图乙中画出杠杆AB在图示 sketch template

22．如图所示用细绳将小球悬挂于天花板上球心到悬点间距为R球的质量为m现在把悬线拉成水平将小球由静止释放小球下落至最低点过程中用时T sketch template

如图所示细绳绕过两个定�轮A和B在两端各挂 质量为m的物体在AB中点C处挂一质量为M的小球 A B轴心间距离为2L且m＜M＜2m sketch template

如图所示细绳绕过两个定�轮A和B在两端各挂 质量为m的物体在AB中点C处挂一质量为M的小球 A B轴心间距离为2L且m＜M＜2m sketch template

用四个�轮和两根相同的绳子组成如图所示的甲、乙两个�轮组用它们匀速提起货物在绳自由端施加竖直的拉力分别为F甲和F乙物重分别为G甲和G乙 sketch template

如图所示细绳绕过两个定�轮A和B在两端各挂一个重为P的物体现在AB的中点C处挂一个重为Q的小球Q sketch template

如图所示细绳绕过两个定�轮A和B在两端各挂 质量为m的物体在AB中点C处挂一质量为M的小球 A B轴心间距离为2L且m＜M＜2m 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长为L的轻质细绳悬挂一个质量为m的小球其下方有一个倾角为θ的光�斜面体放在光�水平面上．开始时小球刚好与斜面接触无压力现在用 sketch template

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长为L的细绳一端固定在O点另一端拴住一个质量为m的小球在O′点处有一枚与竖直平面垂直的钉子O′与竖直方�成θ=37°角．把球拉 sketch template

如图所示在竖直平面内用轻质细线悬挂一个小球将小球拉至A点使细线处于拉直状态然后让小球以初速度v0从A点开始运动不计�擦和空气阻力 sketch template

15．如图6所示绳子AB能承受的最大拉力为100N用它悬挂一个重50N的物体现在其中点O施加一个水平拉力F缓慢�右拉动当绳子断裂时AO sketch template

如图所示物体AB经无�擦的定�轮用细绳连接在一起A物体受水平�右的力F作用此时B匀速下降A水平�左运动由此可知A．物体A做匀速运动 sketch template

如图所示质量为m的小球用长L的细线悬挂而静止在竖直位置在下列三种情况下分别用水平拉力F将小球拉到细线与竖直方�成θ角的位置．在此过程中 sketch template

如图所示用长为L的轻绳悬挂一个质量为m的小球对小球再施加一个力使绳与竖直方�成β角并绷紧小球处于静止状态此力最小为 A sketch template

如图所示质量为m的小球被水平绳AO和与竖直方�成θ角的轻弹簧系着处于静止状态现用火将绳AO烧断在绳AO烧断的瞬间下列说法正确的是 sketch template

题目如图甲乙所示细绳拴一个质量为m的小球小球分别用固定在墙上的轻质铰链杆和轻质弹簧支�平衡时细绳与竖直方�的夹角均为53°轻杆和 sketch template

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如图所示质量为m的小球用一根细线悬挂在O点用一个水平力作用在小球上使细线与竖直方�成30°角时小球静止求1水平拉力的大小．2 sketch template

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