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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Take a peek at some of the sketches created by our users, are you a sketchite?

sketch #687 Buddha Peace

anonymous

anonymous
sketch #687 Buddha Peace

sketch #3508 Medusa by Nelly Panambo

anonymous

anonymous
sketch #3508 Medusa by Nelly Panambo

sketch #5125

anonymous

anonymous
sketch #5125

sketch #2751

Guillaume Ballieu
sketch #2751

sketch #1846 zay

anonymous

anonymous
sketch #1846 zay

sketch #2810 Lennon by El Harouati Nassera

El Harouati Nassera
sketch #2810 Lennon by El Harouati Nassera

sketch #4896

anonymous

anonymous
sketch #4896

sketch #2250 lelouch

anonymous

anonymous
sketch #2250 lelouch

sketch #2562

anonymous

anonymous
sketch #2562

sketch #5087

anonymous

anonymous
sketch #5087

sketch #1257

anonymous

anonymous
sketch #1257

sketch #3280 Adventure Time by Alina Danielle

anonymous

anonymous
sketch #3280 Adventure Time by Alina Danielle

sketch #894 hmmm

anonymous

anonymous
sketch #894 hmmm

sketch #5054 Angelina Jolie by Hailey So Pretty

anonymous

anonymous
sketch #5054 Angelina Jolie by Hailey So Pretty

sketch #5349

anonymous

anonymous
sketch #5349

sketch #4939 Zelda by Jeanie Wagenknecht

anonymous

anonymous
sketch #4939 Zelda by Jeanie Wagenknecht

sketch #120 a pretty flower

Carly Kelly
sketch #120 a pretty flower

sketch #5208 Alf by David Rossien

anonymous

anonymous
sketch #5208 Alf by David Rossien

sketch #4661 Woodpecker by Hsien-Ying Hsieh

anonymous

anonymous
sketch #4661 Woodpecker by Hsien-Ying Hsieh

sketch #5269

anonymous

anonymous
sketch #5269

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 #3398 Sharingan by حيرتني بصمتها

anonymous

anonymous
sketch #3398 Sharingan by حيرتني بصمتها

sketch #3804

Laura Agapi Asnicar
sketch #3804

sketch #3429 Another try of Miku xD

Chelley
sketch #3429 Another try of Miku xD

sketch #855

Laura Agapi Asnicar
sketch #855

sketch #5262

anonymous

anonymous
sketch #5262

sketch #2459 funky afro

sketchmaster
sketch #2459 funky afro

sketch #5047 Pikachu and Raichu by Saiful Farizam

anonymous

anonymous
sketch #5047 Pikachu and Raichu by Saiful Farizam

sketch #5069 Mad Hatter by Ahmed Mostafa

anonymous

anonymous
sketch #5069 Mad Hatter by Ahmed Mostafa

sketch #4975 Orange by Marcos Roberto Molina

anonymous

anonymous
sketch #4975 Orange by Marcos Roberto Molina

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

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

如图所示用�轮组将密度为 28×103kg/m3质量为56kg�属块完全在水中匀速提升05m加在绳子自由端的拉力是F动�轮重120N 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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

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，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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

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

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用动�轮把重400N的物体在20s内匀速提高10m拉力所做的功为5000J．求1动�轮的机械效率2拉力的功率．题目和 sketch template

百度教育 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

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

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

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

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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

24．如图7所示物体挂在弹簧测力计下用力的示意图表示出物体所受拉力的三要素——青夏教育精英家教�—— 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

如图所示在粗糙斜面顶端固定一弹簧其下端挂一物体物体在A点处于平衡状态．现用平行于斜面�下的力拉物体第一次直接将物体拉到B点第二次将 sketch template

如图a所示物体原来静止在水平面上用一水平力F拉物体在F从0开始逐渐增大的过程中物体先静止后又做变加速运动其加速度a随外力F变化的 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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

如图所示某人用�轮组匀逮提升重120N的物体人的拉力为50N在2s内绳的自由端移动了6米1物体上升的高度2人所做的额外功是 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

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

质量分别为m1和m2的两个物体AB并排静止在水平地面上如图甲所示用同方�水平拉力F1F2分别作用于物体A和B上作用一段时间后撤去 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

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03m/s．求1小明所用 sketch template

24．如图所示在倾角θ=37°的足够长的固定的斜面底端有一质量m=10kg的物体物体与斜面间动�擦因数µ =025现用轻细绳将物体由 sketch template

如图所示用一水平力F将一重20N的物体匀速推上高为1m斜面长为2m的光�斜面则力F对物体做的功为 A．20JB．80J C sketch template

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