如图所示用一动�轮拉一物体a以05ms的速度 在水平面上作匀速直线运动物体a重为20n受到的� 擦阻力是物重的02倍水平拉力为2 Sketch Coloring Page

如图所示用一动�轮拉一物体a以05ms的速度 在水平面上作匀速直线运动物体a重为20n受到的� 擦阻力是物重的02倍水平拉力为2 Template

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sketch #3643

anonymous

anonymous
sketch #3643

sketch #1551 donara

Donara Smbatyan
sketch #1551 donara

sketch #5113 Growlithe and Arcanine by Kervinzitho del Piero

anonymous

anonymous
sketch #5113 Growlithe and Arcanine by Kervinzitho del Piero

sketch #5326

anonymous

anonymous
sketch #5326

sketch #3814

Emin AltınKöprü
sketch #3814

sketch #2070

anonymous

anonymous
sketch #2070

sketch #5156 Angry Bird by Roberto Castro Colimil

anonymous

anonymous
sketch #5156 Angry Bird by Roberto Castro Colimil

sketch #3197 Dragon by Yuryi Zambrano

anonymous

anonymous
sketch #3197 Dragon by Yuryi Zambrano

sketch #4778

anonymous

anonymous
sketch #4778

sketch #4907

anonymous

anonymous
sketch #4907

sketch #4191

anonymous

anonymous
sketch #4191

sketch #5175

anonymous

anonymous
sketch #5175

sketch #2787 Spongebob by ShopRasta Roots

ShopRasta Roots
sketch #2787 Spongebob by ShopRasta Roots

sketch #2486 Face by sketchmaster

sketchmaster
sketch #2486 Face by sketchmaster

sketch #4728 Angry Toad by Geneval Mendes

anonymous

anonymous
sketch #4728 Angry Toad by Geneval Mendes

sketch #1169 ENJOY IT!!!!!!!! OH NO EAT IT OR IT WILL MELT!!!!! :0

anonymous

anonymous
sketch #1169 ENJOY IT!!!!!!!! OH NO EAT IT OR IT WILL MELT!!!!! :0

sketch #135 TYGER Style

Jaroslav Florian
sketch #135 TYGER Style

sketch #5343

anonymous

anonymous
sketch #5343

sketch #2082 mash

anonymous

anonymous
sketch #2082 mash

sketch #4855

anonymous

anonymous
sketch #4855

sketch #2625 Dragon by sketchmaster

sketchmaster
sketch #2625 Dragon by sketchmaster

sketch #2559 sun

anonymous

anonymous
sketch #2559 sun

sketch #2922

anonymous

anonymous
sketch #2922

sketch #1455 donara

Donara Smbatyan
sketch #1455 donara

sketch #5052 Gorillaz by Rafał Dawid

anonymous

anonymous
sketch #5052 Gorillaz by Rafał Dawid

sketch #2178

anonymous

anonymous
sketch #2178

sketch #5370 Requiem for the Phantom by Marita Amaya

anonymous

anonymous
sketch #5370 Requiem for the Phantom by Marita Amaya

sketch #21243

anonymous

anonymous
sketch #21243

sketch #2549

anonymous

anonymous
sketch #2549

sketch #3064

anonymous

anonymous
sketch #3064

tomski如图所示用一动�轮拉一物体a以05ms的速度 在水平面上作匀速直线运动物体a重为20n受到的� 擦阻力是物重的02倍水平拉力为2 coloring

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

如图所示用一动�轮拉一物体A以05m/s的速度 在水平面上作匀速直线运动物体A重为20N受到的� 擦阻力是物重的02倍水平拉力为2 sketch template

一轮复习：阿特伍德机类型知乎 sketch template

一轮复习：阿特伍德机类型知乎 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20NA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

如图所示用F为40 N的拉力通过�轮组拉着重为300 N的物体A在水平面上以04 M/s的速度�左做匀速直线运动物体受到的�擦力是物重 sketch template

百度教育 sketch template

用如图所示甲乙两个�轮组分别提起相同的质量的物体．两个�轮组的动�轮的质量相同不计�擦则A．F甲> F乙η甲>η乙B．F甲 sketch template

一轮复习：动态平衡问题解题技巧知乎 sketch template

22．如图所示用定�轮和动�轮分别将质量相同的甲乙两物体匀速提升相同的高度不计绳重与�擦且动�轮重G动小于乙物体的物重G则所用的拉力 sketch template

如图5所示的皮带传动装置中轮A和B同轴ABC分别是三个轮边缘上的质点且rA=rC=2rB则三个质点的�心加速度之比aAaBaC sketch template

如图所示用25N的拉力沿竖直方�匀速拉起重为4N的物体G物体升高lm所用的时间为4s绳子自重�轮与轴间�擦不计则A拉力做功的功率 sketch template

如图所示用�轮组拉着重600N的物体A沿水平方�匀速移动40s内移动了8m拉力F所做的功为2400J．1画出A物体受到的所有的力的 sketch template

10．用图所示的�轮组水平拉动重为100N的物体以05 M／s的速度在水平地面上匀速运动若物体受到的�擦力为60 N不计机械自重和�擦 sketch template

10．用相同的定�轮和动�轮组成甲乙两个�轮组如图8所示用它们来提升同一重物甲�轮组将重物举高1m乙�轮组将重物举高2m在不计绳 sketch template

如图所示用与水平面成30°角的力斜�右拉小车拉力为200 N要求画出带有标度能够精确表示此力的示意图．题目和参考答案——青夏教育 sketch template

如图1所示水平的传送带以速度v=4m/s顺时针运转两传动轮MN之间的距离为L=9m若在M轮的正上方将一质量为m=1kg的物体轻放在 sketch template

如图所示用一机械效率为90%�轮组拉着重900N的物体A沿水平方�在40s内匀速移动了8m拉力F所做的功为1200J．则 A．拉力的 sketch template

14．如图8所示用恒力F通过光�的定�轮将静止于水平面上的物体从位置A拉到位置B物体可视为质点定�轮距水平面高为h物体在位置AB时 sketch template

某人用如图15所示的�轮组吊起一个重1000N的物体�轮组的机械效率为80%他在5s内使绳子自由端移动8m求 1物体上升的高度和 sketch template

如图所示用�轮组提起一个密度为25×103kg/m3体积为004m3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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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用�轮组拉着物体A是正方体铁块边长是30cm．当拉力F=70N时物体A恰好做匀速直线运动．动�轮重15N已知ρ铁=78× sketch template

用如图所示的�轮组将物体�左移动A B两个�轮中A是 �轮B是 �轮在不考��轮重和�擦时物体与桌面的�擦力是90N匀速移动物体 sketch template

如图所示物体A通过�轮在水平拉力F的作用下沿水平面以1m/s 的速度做匀速直线运动此时弹簧测力计的示数为4N若不计动�轮绳子弹簧测力 sketch template

如图所示小宇同学用一个距离手3m高的定�轮拉住100N的物体他手拉绳子从�轮正下方沿水平方�移动4m如图所示若不计绳重和�擦他至�做 sketch template

如图所示用定�轮和动�轮分别将质量相同的甲乙两物体匀速提升相同的高度不计绳重与�擦且动�轮重G动小于乙物体的物重G则所用的拉F甲 sketch template

如图所示物体A置于水平面上物A前固定有动�轮BD为定�轮．一根轻绳绕过DB后固定在C点BC水平当用力以速度υ拉绳子时物体沿水平 sketch template

如图所示用F=6N的水平�右的拉力匀速拉动物块A时物块B静止不动此时弹簧测力计示数为4N则物块B所受�擦力大小及方�为 A sketch template

2．如图所示在不计绳重和�擦的情况下用动�轮把重40N的物体匀速提高2m所用的拉力为25N则拉力做功是 J动�轮的机械效率是 果把 sketch template

15．如图所示用F=6N的水平�右的拉力匀速拉动物块A时物块B静止不动 此时弹簧测力计的示数为4N则物块B所受�擦力的大小为 N�擦 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

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