用如图所示�轮组提升重物．人用50n的拉力f15s内使重为90n的物体匀速上升了3m．不计绳重和�擦求1动�轮的重．2人拉绳子 Sketch Coloring Page

用如图所示�轮组提升重物．人用50n的拉力f15s内使重为90n的物体匀速上升了3m．不计绳重和�擦求1动�轮的重．2人拉绳子 Template

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

sketch #264

anonymous

anonymous
sketch #264

sketch #282

Johnny B. Goode
sketch #282

sketch #2772 Merry Christmas from Victor Montecinos Jose Rondon

Jose Rondon
sketch #2772 Merry Christmas from Victor Montecinos Jose Rondon

sketch #5095 Lion by Frederic Knauer

anonymous

anonymous
sketch #5095 Lion by Frederic Knauer

sketch #4273

anonymous

anonymous
sketch #4273

sketch #3639

anonymous

anonymous
sketch #3639

sketch #2027

anonymous

anonymous
sketch #2027

sketch #3535 Mickey by Hakan Usuğ

anonymous

anonymous
sketch #3535 Mickey by Hakan Usuğ

sketch #5269

anonymous

anonymous
sketch #5269

sketch #5018 Owl by Komlós László

anonymous

anonymous
sketch #5018 Owl by Komlós László

sketch #1448 donara

Donara Smbatyan
sketch #1448 donara

sketch #4479

Hank Henry Armstrong
sketch #4479

sketch #2459 funky afro

sketchmaster
sketch #2459 funky afro

sketch #3670 Bugs Bunny by Jessica Column

anonymous

anonymous
sketch #3670 Bugs Bunny by Jessica Column

sketch #4659 Ozzy Osbourne by Piter Olimpo

anonymous

anonymous
sketch #4659 Ozzy Osbourne by Piter Olimpo

sketch #2351

anonymous

anonymous
sketch #2351

sketch #5171

anonymous

anonymous
sketch #5171

sketch #4351

anonymous

anonymous
sketch #4351

sketch #3538

anonymous

anonymous
sketch #3538

sketch #5210 I love you by Saul Mansanares

anonymous

anonymous
sketch #5210 I love you by Saul Mansanares

sketch #4601 PSY Gentleman by Luis Daniel Sanchez Ramirez

anonymous

anonymous
sketch #4601 PSY Gentleman by Luis Daniel Sanchez Ramirez

sketch #4766 The Little Mermaid by Zizou Aiman

anonymous

anonymous
sketch #4766 The Little Mermaid by Zizou Aiman

sketch #4558

anonymous

anonymous
sketch #4558

sketch #5303

anonymous

anonymous
sketch #5303

sketch #3410

anonymous

anonymous
sketch #3410

sketch #5061

anonymous

anonymous
sketch #5061

sketch #2593 Tweety by sketchmaster

sketchmaster
sketch #2593 Tweety by sketchmaster

sketch #4436 Bob Marley by Luiza Irma

anonymous

anonymous
sketch #4436 Bob Marley by Luiza Irma

sketch #2627 Taz by sketchmaster

sketchmaster
sketch #2627 Taz by sketchmaster

sketch #2818 Hellboy by يآآسر محمد

يآآسر محمد
sketch #2818 Hellboy by يآآسر محمد

tomski用如图所示�轮组提升重物．人用50n的拉力f15s内使重为90n的物体匀速上升了3m．不计绳重和�擦求1动�轮的重．2人拉绳子 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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

如图所示工人师傅用250N的力将重400N的物体匀速提升1m在此过程中�轮组的机械效率是 A80%B625%C20%D12 sketch template

题目搬运工人站在水平高台上用如图所示的�轮组匀速竖直�上提升重物不计�轮组的绳重和�擦工人的重力为640N与地面接触的总面积为提升 sketch template

工人师傅利用如图所示的�轮组将重为800N的货物匀速提升 08m所用拉力F为320N则工人做的有用功是640640J此�轮组的机械效率 sketch template

百度教育 sketch template

用如图所示�轮组匀速提升重为200N的物体人对绳的拉力为125N不计绳重和�擦�轮组的机械效率为 ．如果人的体重为600N拉动过程中绳 sketch template

用如图所示的�轮组将重100N的物体匀速提升02m所用时间为2s作用在绳子末端的拉力F为60N不计绳重和绳与�轮间的磨擦下列计算 sketch template

用如图所示�轮组提升重物．人用50N的拉力F15s内使重为90N的物体匀速上升了3m．不计绳重和�擦求1动�轮的重．2人拉绳子 sketch template

用如图所示的�轮组提升重物人用500N的拉力F在20s内使重为800N的物体匀速上升了3m．不计绳重和�擦则人拉绳子做功的功率和�轮组的 sketch template

如图所示的甲乙两个�轮组所用�轮都相同分别把同一重物匀速提升相同的高度．若不计绳重及�擦下列说法正确的是 A．F1=F2B．乙�轮 sketch template

如图6所示工人用�轮组提升重物已知�轮质量相同若把同一货物匀速提升相同的高度不计绳子与�轮间的�擦 A．使用定�轮比动�轮省力但 sketch template

用如图甲所示的�轮组提升物体M，已知物体M所受的重力为550N，卷扬机加在绳子自由端的拉力F将物体M在20s内沿竖直方�匀速提升10m，拉力F sketch template

用如图所示的�轮组来提升重物已知动�轮自重G=100N把重为400N的物体匀速提升4m时拉力至�需做20002000J的功．此时�轮组 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

用如图所示的�轮组匀速提升浸没在水中的物体，已知G=3900N。圆柱形容器底面积S=06m²，物体浸没在水中时水面高度为100cm，当物体 sketch template

如图所示是由三个相同的�轮组装成提升重物的装置固定点O所能承受的最大拉力为2300N．在不计绳重和轴的�擦情况下假设绳子足够结实提起 sketch template

59．如图所示物重G为600N用�轮组将重物匀速提升5m所用拉力F为250N�轮组的机械效率为 ．若不计�擦被提升的物重增加时�轮 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

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

用如图所示的�轮组提升重为G=3200N的重物当重物以05m/s的速度匀速上升时拉力F的功率是2000W．忽略�擦和绳重．求1动�轮 sketch template

用如图所示的�轮组提升重物所用的拉力是100N动�轮重为80N则用此�轮组能提起 N的重物若将重物提高3m那么绳端要拉过 M．——青 sketch template

某人用如图所示的�轮组匀速提升500N的重物所用的拉力F为300N 绳子自由端被拉下2m在此过程中求�拉力F所做的功 ��轮组的 sketch template

如图所示分别用两个�轮组在相同的时间内将重相同的物体G匀速提升相同的高度每个�轮的重均相同．不计绳重及�擦此过程中 A．甲的机械 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

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

用如图所示的�轮组把170N的重物匀速提升2m人对绳的拉力为100N不计绳重和�擦所做的有用功是340340J�轮组的机械效率为85 sketch template

如图所示用相同的�轮构成甲乙两个�轮组分别把同一个重物匀速提升相同高度．不计绳重及�擦下列说法正确的是 A．绳子自由端移动的距离 sketch template

63．工人用如图所示的�轮组提升重物在10s内将240N的物体匀速提升2m已知工人的拉力为100N不计绳重与�擦阻力求 1工人 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

按要求作图1如图1所示画出物体所受重力的示意图．2用如图2所示的两个�轮组成一个�轮组提升重物要求拉力为物重的三分之一忽略�擦 sketch template

题目分别用如图所示的两个�轮组将同一物体提升到相同高度若物体受到的重力为100N动�轮的重力为20N．在把物体匀速提升1m的过程中 sketch template

如图所示用�轮组提升重物时重200N的物体在5s内匀速上升了1m．已知拉绳子的力F为120N如果不计绳重及�擦则提升重物的过程中A sketch template

用如图所示�轮组提起重物不计动�轮自重和�擦若拉力F为50N则物重G为 N若绳子的自由端�上拉06m则重物升高 M．题目和参考 sketch template

1如图所示物体A静止在水平地面在图中画出它所受的力的示意图．2用如图所示的�轮组提升重物若拉力F将绳子的自由端移动1m时重物 sketch template

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