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 Coloring Page

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 Template

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More Sketches

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

sketch #2892 Joker by Frank Aguiar Au

anonymous

anonymous
sketch #2892 Joker by Frank Aguiar Au

sketch #2486 Face by sketchmaster

sketchmaster
sketch #2486 Face by sketchmaster

sketch #5306 Katarina by Mirnes Sinanovic

anonymous

anonymous
sketch #5306 Katarina by Mirnes Sinanovic

sketch #4087 Stewie by Leon Soria Ricardo

anonymous

anonymous
sketch #4087 Stewie by Leon Soria Ricardo

sketch #5314

anonymous

anonymous
sketch #5314

sketch #2740 Monster by Gabriela Segura

Gabriela Segura
sketch #2740 Monster by Gabriela Segura

sketch #342 Forest scene

Chris Shrimp Lonsdale
sketch #342 Forest scene

sketch #5438

anonymous

anonymous
sketch #5438

sketch #2549

anonymous

anonymous
sketch #2549

sketch #5133 Jiraiya by Saiful Farizam

anonymous

anonymous
sketch #5133 Jiraiya by Saiful Farizam

sketch #4300 República, comunismo, libertad

anonymous

anonymous
sketch #4300 República, comunismo, libertad

sketch #871 vampire girl anime

anonymous

anonymous
sketch #871 vampire girl anime

sketch #2618

sketchmaster
sketch #2618

sketch #2588 Buble by sketchmaster

sketchmaster
sketch #2588 Buble by sketchmaster

sketch #4640 Serj Tankian by Dav Guzman Mendoza

anonymous

anonymous
sketch #4640 Serj Tankian by Dav Guzman Mendoza

sketch #3620 Dude by Arasheel Eomseii

anonymous

anonymous
sketch #3620 Dude by Arasheel Eomseii

sketch #1287 No smoke

anonymous

anonymous
sketch #1287 No smoke

sketch #3613

anonymous

anonymous
sketch #3613

sketch #4387 dong air

anonymous

anonymous
sketch #4387 dong air

sketch #3273

anonymous

anonymous
sketch #3273

sketch #5193

anonymous

anonymous
sketch #5193

sketch #3296

anonymous

anonymous
sketch #3296

sketch #5009 Elen Jager from Attack on Titan

anonymous

anonymous
sketch #5009 Elen Jager from Attack on Titan

sketch #4948 Snow White by George Lucaz

anonymous

anonymous
sketch #4948 Snow White by George Lucaz

sketch #323

anonymous

anonymous
sketch #323

sketch #474 waa

anonymous

anonymous
sketch #474 waa

sketch #5198 Sakura Claudio Pose Jester Genso

anonymous

anonymous
sketch #5198 Sakura Claudio Pose Jester Genso

sketch #4972

anonymous

anonymous
sketch #4972

sketch #5130 Batman by Kamal Ahmed Tantawy

anonymous

anonymous
sketch #5130 Batman by Kamal Ahmed Tantawy

sketch #5135 &#;Hypno Colorfull&#; by Lars Tunebo

anonymous

anonymous
sketch #5135 &#;Hypno Colorfull&#; by Lars Tunebo

tomski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 coloring

题目往车上装重物时常常用长木板搭个斜面把重物沿斜面推上去如图所示工人用3m长的斜面把120kg的重物提高1m假设斜面很光�则 sketch template

题目工人用如图甲所示的�轮组利用箱子运送建材上楼每次运送量不定�轮组的机械效率随重力不同的建材变化的图像如图乙所示�轮与钢绳间的�擦 sketch template

如图所示工人用�轮组提升重240N的物体所用的拉力为150N物体在2s内匀速上升1m．求1有用功2�轮组的机械效率3 sketch template

34．如图所示工人师傅在电动机上用2000N的力在1min通过�轮组将放在大平板车上的货物在平直公路上匀速拉动50m已知�轮组的机械效率 sketch template

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做功的功率 sketch template

如图所示工人通过定�轮用F= N的力可以将重100N的物体匀速�上提升若把定�轮改成动�轮提升同样的重物好处是 但机械效率将填 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

如图所示是建�工人利用�轮组从竖直深井中提取泥土的情形．某次操作中工人用400N的拉力F在1min内将总重为900N的泥土匀速提升5m．在 sketch template

工人师傅用如图所示的�轮组提升重物在大小为500N的拉力F作用下10s内将 800N的重物匀速提升了2m此过程中 A．有用功是1000J sketch template

如图所示，工人用�轮组提升重物，已知重物重力G=1000N，动�轮重力G动=200N，在工人用力F作用下，重物匀速上升，30s达到规定高度6m sketch template

如图所示建�工人用�轮组匀速提升重物已知加在绳子自由端的拉力为400N物体上升的速度为01m/s�轮组的机械效率为90%不计绳重和 sketch template

如图所示，工人站在水平台面上用�轮组提货物。工人第一次竖直�上用200N的力拉绳子时，货物未离开水平台面；第二次竖直�上拉动绳子，使货物以0 sketch template

如图所示质量为70kg的工人站在岸边通过一�轮组打捞一块沉没在水池底部的石材该�轮组中动�轮质量为5kg．当工人用120N的力拉�轮组的绳 sketch template

工人利用如图所示的�轮组将重900N的物体竖直�上匀速提升 05m工人对绳的拉力为600N则�轮组对重物所做的有用功W有用 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

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

如图所示一工人用�轮组提升重500N的物体所用的拉力F为200N物体以02m/s的速度匀速上升了10s求1物体上升的高度 2 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

如图所示工人用动�轮把重物匀速提升到一定高度重物的重力为G物动�轮的重力为G动此装置的机械效率为η不计绳重和�擦则工人所用的拉力 sketch template

如图1所示 建�工人用�轮组提升重为285N的水泥桶 动�轮重为15N 不计�轮与轴之间的�擦及绳重 工人在将水出卷� sketch template

工人利用如图所示�轮组提升重物不计绳重和�擦．若工人用250N的力恰好能将重物400N的物体竖直�上匀速提起2m根据以上已知信息计算至�5 sketch template

31．如图所示工人用定�轮匀速提升重为180 N的物体所用的拉力为200 N在5s内物体升高的高度为2 M．此过程中求 1有 sketch template

如图所示工人用�轮组将重400N的货物匀速提升2m拉力F为250N则绳子自由端移动的距离是44m此过程有用功为800J800J�轮组 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

工人利用如图所示的�轮组将重900N的物体竖直�上匀速提升05m工人所用的拉力F为600N求1人的拉力做的功为多�J2此 sketch template

如图所示的是工人用铁棒撬石头的示意图请在图中画出动力臂L1阻力F2阻力臂L2——青夏教育精英家教�—— sketch template

31．如图所示工人用定�轮匀速提升重为180 N的物体所用的拉力为200 N在5s内物体升高的高度为2 M．此过程中求 1有 sketch template

如图所示工人用�轮组匀速提升重600N的货物所用的拉力F为400N货物在50s内匀速上升5m．在此过程中货物上升的速度是01m/s sketch template

如图所示工人用动�轮把重物匀速提升到一定高度重物的重力为G物动�轮的重力为G动此装置的机械效率为η不计绳重和�擦则工人所用的拉力 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

如图所示工人师傅用�轮提升重物�轮质量相同若把同一货物匀速提升相同的高度绳重及�轮与轴之间的�擦不计下列说法错误的是 A sketch template

建�工地用如图l7所示的简易�轮组提升砖块某工人将重500 N的砖块一次性匀速提升到离地面4 M高的砌墙处所用拉力为200 N时间为20 sketch template

如图所示建�工人用�轮组提升重为240 N的泥桶动�轮重为30 N不计�轮与轴之间的�擦及绳重若工人在10 S内将绳子匀速�上拉9 M sketch template

某建�工地上工人用图所示的动�轮将重450N的物体匀速竖直提升了6m若已知动�轮此时的机械效率为90%请计算1工人提升重物所做的有 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

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