4．如图所示物块m在静止的传送带上以速度v匀速下�时传送带突然启动方�如图箭头所示若传送带的速度大小也为v则传送带启动后 A Sketch Coloring Page

4．如图所示物块m在静止的传送带上以速度v匀速下�时传送带突然启动方�如图箭头所示若传送带的速度大小也为v则传送带启动后 A Template

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

sketch #215 my mickey mouse

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anonymous

anonymous
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anonymous

anonymous
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anonymous

anonymous
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anonymous

anonymous
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anonymous

anonymous
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sketch #734 ytsfsfsdhgdhgf

Melissa Cogo
sketch #734 ytsfsfsdhgdhgf

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anonymous

anonymous
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anonymous

anonymous
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anonymous

anonymous
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anonymous
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anonymous

anonymous
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sketch #2645 Flowers in window

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anonymous

anonymous
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tomski4．如图所示物块m在静止的传送带上以速度v匀速下�时传送带突然启动方�如图箭头所示若传送带的速度大小也为v则传送带启动后 a coloring

如图甲所示水平地面上静止放置一质量为M的木板木板的左端有一个可视为质点的质量为m=1kg的�块．现给�块一�右的初速度v0=10m/s sketch template

倾斜的传送带以恒定的速率沿逆时针方�运行如图甲所示在t＝0时将质量m＝20kg的小物块轻放在传送带上A点处2s时物块从B点离开传送带 sketch template

一轮复习：动态平衡问题解题技巧知乎 sketch template

4．物块M在静止的传送带上匀速下�时传送带突然转动传送带转动的方�如图中箭头所示则传送带转动后 A．M将减速下� B．M仍匀速下� C sketch template

如图甲所示物块AB的质量分别是mA=40kg和mB=30kg用轻弹栓接两物块放在光�的水平地面上物块B的右侧与竖直墙面接触．另有一 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质量m=10kg和M=20kg的两物块叠放在动�擦因数μ=05的粗糙水平地面上质量为m的物块通过处于水平位置的轻弹簧与竖直墙壁 sketch template

如图所示物块M在静止的足够长的传送带上以速度v0匀速下�时传送带突然启动方�如图中箭头所示在传送带的速度由零逐渐增加到2v0然后匀速 sketch template

5．一物块放在水平地面上如图所示物块对地面的压力F和地面对物块的支持力F’属于一对作用力和反作用力关于F和F’下列说法正确的是 A．F和F sketch template

4．如图4所示质量分别为的两个物块叠放在一起放置在一根竖直轻质弹簧的上端当两物块静止时弹簧压缩了现用一竖直�下力按压物块使弹簧再缩短 sketch template

如图所示物块m与小车后壁之间的动�擦因数为设最大静�擦力等于�动�擦力汽车�右运动时物块与小车保持相对静止在此过程中 A它们的 sketch template

如图所示物块M在静止的足够长的传送带上以速度v0匀速下�时传送带突然启动方�如图中箭头所示在传送带的速度由零逐渐增加到2v0然后匀速 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

12．如图所示物块以速度v 沿水平面由A点�到B点克服�擦力做的功为W1 该物块以初速 v 由A′点经过两斜面运动到B′点克服�擦力做 sketch template

如图甲所示物块AB的质量分别是mA=4．0kg和mB=3．0kg．用轻弹簧栓接放在光�的水平地面上物块B右侧与竖直墙接触．另有一个物块 sketch template

如图所示，物块m随转筒一起以角速度 做匀速圆�运动，如下描述正确的是（ sketch template

如图甲所示一质量为m的物块在t=0时刻以初速度v0从足够长倾角为θ的粗糙斜面底端�上�行物块速度随时间变化的图象如图乙所示．t0时刻物 sketch template

百度教育 sketch template

11．如图所示物块M左侧与轻弹簧相连弹簧左端固定在竖直墙上开始时物块M静止在粗糙水平面上弹簧处于被拉伸状态现在对M施加一个从零开始 sketch template

如图所示物块M在静止的传送带上匀速下�时传送带突然顺时针转动起来则传送带转动后下列说法正确的是 A．M受到的�擦力不变B．M受到的 sketch template

如图甲所示在粗糙的水平面上质量分别为m和M的物块AB用轻弹簧相连两物块与水平面间的动�擦因数相同．当用水平力F作用于B上且两块共同�右 sketch template

如图所示质量为m=2kg的物块放在倾角为θ=37°的斜面体上斜面质量为M=4kg地面光�现对斜面体施一水平推力F要使物块m相对斜面 sketch template

如图所示物块A叠放在木板B上且均处于静止状态已知水平地面光�AB间的动�擦因数μ=02现对A施加一水平�右的拉力F测得B的 sketch template

如图甲所示竖直放置轻弹簧下端与放在水平地面上的物块A相连上端与物块B相连物块C在B的正上方某处自由下落与B碰后黏合在一起后继续下降在 sketch template

4．如图所示物块M在静止的传送带上以速度v匀速下�时传送带突然启动方�如图箭头所示若传送带的速度大小也为v则传送带启动后 A sketch template

如图所示有一条匀速传送的传送带恒定速度v＝4 m/s传送带与水平面的夹角θ＝37°现将质量m＝1 Kg的小物块轻放在其底端与此同时 sketch template

百度教育 sketch template

如图所示水平传送带上的物块与传送带一起�右运动不打�则下列关于物块受�擦力的说法中正确的有 A若传送带做匀速运动物块可能受到�右的静 sketch template

如图2所示一物块位于光�水平桌面上用一大小为F方�如图所示的力去推它使它以加速度a�右运动若保持力的方�不变而增大力的大小则 sketch template

$如图所示半径r=$frac{1}{3}$m的两圆柱体A和B转动轴互相平行且在同一水平面内轴心间的距离为s=32m．两圆柱体A和B均被 sketch template$

题目如图所示三角形传送带以1 m/s的速度逆时针匀速转动两边的传送带长都是2 m且与水平方�的夹角均为37°现有两个小物块AB从 sketch template

如图所示一异形轨道由粗糙的水平部分和光�的四分之一圆弧部分组成置于光�的水平面上如果轨道固定将可视为质点和物块从圆弧轨道的最高点由静止 sketch template

如图所示在竖直平面有一个光�的圆弧轨道MN其下端与表面粗糙的水平传送带左端相切轨道N端与传送带左端的距离可忽略不计．当传送带不动时将一 sketch template

如图所示AB两物块叠放在一起在粗糙的水平面上保持相对静止地�右做匀减速直线运动运动过程中A受到B对它的�擦力 A方��左大小 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

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