如图所示b物体重20na为动�轮绳子一端固定在地上当�轮a在力f的作用下以05ms的速度匀速上升则物体b的速度是 a．0 Sketch Coloring Page

如图所示b物体重20na为动�轮绳子一端固定在地上当�轮a在力f的作用下以05ms的速度匀速上升则物体b的速度是 a．0 Template

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tomski如图所示b物体重20na为动�轮绳子一端固定在地上当�轮a在力f的作用下以05ms的速度匀速上升则物体b的速度是 a．0 coloring

如图所示B物体重20NA为动�轮绳子一端固定在地上当�轮A在力F的作用下以05m/s的速度匀速上升则物体B的速度是 A．0 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

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不考��轮重及�擦力物B重20NA为一动�轮绳的一端固定在地面上当� 轮在力F的作用下匀速上升时所用拉力F为 A sketch template

一轮复习：动态平衡问题解题技巧知乎 sketch template

一轮复习：阿特伍德机类型知乎 sketch template

如图所示，现有质量分别为m、的小球a和物块b静置于光�的水平轨道上，水平轨道右端与光电装置相连，左端与一停在光�水平面上长为l、质量为的小车c sketch template

如图所示四个�轮组如果�轮的重力和一切�擦及丙组的板重不计重物G的重力为600N．要将重物匀速提起四种情况下拉力F分别为F甲= F乙 sketch template

百度教育 sketch template

如图所示的装置中甲物体重6N乙物体重9N甲乙两物体均保持静止状态不计弹簧测力计自重和�轮与轴的�擦则弹簧测力计的示数是 N地面对 sketch template

百度教育 sketch template

一轮复习：阿特伍德机类型知乎 sketch template

如图所示用�轮组提起一个密度为25×103kg/m3体积为004m3的石块作用在绳子自由端的拉力F为400N石块在20s内匀速上升 sketch template

如图所示AB=1mOB=04m当杠杆处于水平静止时弹簧秤的示数为138N右端水中铁块m刚好悬在水中．不计�轮重及�擦．求1F sketch template

一轮复习：阿特伍德机类型知乎 sketch template

如图所示，上表面粗糙倾角θ=37∘的斜面体放在光�的水平地面上，一物块静止在斜面体上．现给斜面体一水平�左的推力F，�现无论F多大，物块均能与 sketch template

百度教育 sketch template

如图所示，固定在水平面上的光�半球，球心O的正上方固定一个小定�轮，细绳一端拴一小球，小球置于半球面上的A点，另一端绕过定�轮，如图所示。今 sketch template

如图甲所示的�轮组每个�轮等重．不计绳重和�擦物体重G1从200N开始逐渐增加直到绳子被拉断．每次均匀速拉动绳子将物体提升同样的高度．图 sketch template

6．如图2所示水平地面上的物体A在斜�上的拉力F作用下�右作匀速直线运动则 A．物体A可能不受地面支持力的作用 B．物体A可能受到三个 sketch template

百度教育 sketch template

如图甲所示的�轮组每个�轮等重．不计绳重和�擦物体重G1从200N开始逐渐增加直到绳子被拉断．每次均匀速拉动绳子将物体提升同样的高度．图 sketch template

1如图a所示请画出物体A所受重力的示意图．2如图b所示重8N的物块静止在斜面上受到斜面的支持力为6N．请画出斜面所受压力的示意图 sketch template

如图所示物体重600N要使人拉住绳子的一端使物体静止若不计�轮的重力和�擦则人的拉力为 题目和参考答案——青夏教育精英家教�—— sketch template

如图所示叠放在一起的物体A和B在大小为F的恒力作用下沿水平面做匀速直线运动则下列结论中正确的是 A．甲乙两图中A物体所受的�擦力大小均 sketch template

小明利用如图所示的�轮组将重为900N的物体从一楼匀速提升到六楼所用的拉力为360N绳子自由端移动的速度为03m/s．求1小明所用 sketch template

如图所示物体重180 N动�轮重20 N绳子重和�擦不计在拉力F的作用下物体正以01 M/s的速度匀速上身求 1拉力F的 sketch template

如图所示A物体重40NB物体重12N．A物体在绳子水平拉力作用下沿水平桌面�右做匀速直线运动它受到桌面的�擦力为12N．如果要使A物体 sketch template

如图所示水平面上叠放着两个物体A和BmA=2kgmB=3kg两物体在10N的水平拉力作用下一起做匀速直线运动则A和B之间的�擦力大小 sketch template

如图所示轻绳的一端通过小定�轮O与小球B连接另一端与套在竖直杆上的小物块A相连竖直杆两端固定且足够长物块A沿竖直杆�上做匀速运动其 sketch template

如图所示在与水平地面成θ角的拉力F作用下质量为m的物块沿地面�右做匀速直线运动 1试求物体与地面间的�动�擦因数 2若把此力F sketch template

如图所示，电源电压恒为18V，定值电阻R1=20Ω，�动变阻器R2标有“40Ω 05A”，电流表A的量程为006A，电压表量程为0 sketch template

如图所示，小物块A与圆盘保持相对静止，跟着圆盘一起作匀速圆�运动，则下列关于A的受力情况说法正确的是 A．受重力、支持力 B．受重力、支持力 sketch template

如图所示不计绳重和�擦拉力F是125N在10s内将重物匀速提升2m此时�轮组的机械效率是80%则下列说法正确的是 A．动�轮重 sketch template

如图甲所示是小明“探究电流与电压、电阻的关系”的实验电路图。选用的实验器材是：电源3V、电流表（00 6A）、出卷� sketch template

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