如图所示重为25n的木块在大小为10n的水平拉力f的作用下在10s内沿水平地面匀速前进5m则物体受到的�擦力为 N拉力做的功为 J Sketch Coloring Page

如图所示重为25n的木块在大小为10n的水平拉力f的作用下在10s内沿水平地面匀速前进5m则物体受到的�擦力为 N拉力做的功为 J Template

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anonymous

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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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anonymous

anonymous
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anonymous

anonymous
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anonymous

anonymous
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anonymous

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anonymous

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sketch #3599 Lovely pencil face

anonymous

anonymous
sketch #3599 Lovely pencil face

tomski如图所示重为25n的木块在大小为10n的水平拉力f的作用下在10s内沿水平地面匀速前进5m则物体受到的�擦力为 n拉力做的功为 j coloring

如图所示重为25N的木块在大小为10N的水平拉力F的作用下在10s内沿水平地面匀速前进5m则物体受到的�擦力为 N拉力做的功为 J sketch template

如图所示重为25N的木块在大小为10N的水平拉力F的作用下在10s内沿水平地面匀速前进5m则物体受到的�擦力为 N拉力做的功为 J sketch template

如图所示质量为m的木块从位于竖直平面内的圆弧形曲面上�下由于�擦力的作用木块从a到b运动的速率增大b到c的速率一直保持不变c到d的 sketch template

如图所示重为6N的木块在水中处于静止状态此时绳子的拉力为4N．木块所受浮力的大小和方�是A 2N竖直�上 B 4N竖直�下 C sketch template

如图所示将一个重为10N的木块沿倾角为30°斜面匀速�上拉至顶端拉力为8N斜面高5m拉力做功为80J木块所受的�擦力为3N．若仅使 sketch template

如图所示重为25N的物体甲通过三段绳悬挂三段轻绳的结点为O轻绳OB平行于倾角为37°的斜面且B端与放置在斜面上的重为100N的物体乙 sketch template

题目如图所示高08m重1100N的均匀圆柱形木柱M底面半径r=03m将它竖直放在水平地面上时木柱所受的重力与地面对它的支持力 sketch template

重为20N的物体将其浸没在水中时它排开的水重为25N此时它受到的浮力为 N松开手后物体将填“上浮 “下沉或“悬浮．——青夏 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

29．如图27所示木块重200 N前进过程中所受的�擦力为40 N 求 �不考��轮的自重和�擦木块匀速前进2 M时拉力F做了多�功 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

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

20．如下图所示物体A重10N物体与竖直墙的动�擦因系数为0．4用一个与水平方�成37°角的力F作用在物体上要使物体A沿墙作匀速运动则 sketch template

如图所示是同一木块先后两次在同一水平面上被水平拉动在间隔相等时间内连续拍�的“�闪照片．1第一次运动是匀速直线运动2两次木块所受 sketch template

如图所示用力F=30N按住一重G=10N的木块当木块沿竖直方�匀速下�时木块受到的�擦力的大小是10N方�是竖直�上．题目和参考 sketch template

如图所示重叠在一起的A．B．C三个重物当B物体受到10N的水平拉力作用后三个物体一起在水平面上�右做匀速直线运动请作出C的受力示意图 sketch template

$如图所示已知重为10N的长方体木块静止在水面上浸入在水中的体积占木块总体积的$frac{4}{5}$．1求木块所受到的浮力大小2 sketch template$

如图所示体积为V=200cm3的木块在绳子�下的拉力F=08N的作用下完全浸没在水中ρ水=10×103kg/m3绳子重力不计求 sketch template

1如图a所示请画出物体A所受重力的示意图．2如图b所示重8N的物块静止在斜面上受到斜面的支持力为6N．请画出斜面所受压力的示意图 sketch template

如图所示用一水平力F=30N将重20N的木块压在竖直墙壁上使其静止在竖直墙壁上画出木块受到力的示意图．题目和参考答案——青夏教育精英家教�—— sketch template

如图所示一个木块从斜面上�下并在水平面上继续�动．请画出木块在水平面时所受力的示意图．题目和参考答案——青夏教育精英家教�—— sketch template

$用水平力F将木块压在竖直墙上如图所示．已知木块重G=6N木块与墙壁之间的动�擦因数为μ=$frac{1}{3}$假设最大静�擦力等于 sketch template$

18．如图所示重为6N的长方体浸没在水中上表面受到水的压力为4N则物体的质量为06kg密度为225×103kg/m3 ．——青夏 sketch template

12．如图所示重为100N的物体在与水平方�成60°角的拉力F=10N作用下以2m/s的速度匀速运动在10s内拉力F的冲量大小等于 sketch template

1如图1所示木块的长度为330 ．2如图2所示物体A重 N．3作出图3的铡刀使用中的两个力臂并表明L1和L2． 4在图 sketch template

如图所示将一个重为10N的木块沿倾角为30°斜面匀速�上拉至顶端拉力为8N斜面高5m拉力做功为 J木块所受的�擦力为 N．题目和 sketch template

如图20所示将一块重为3N体积为100cm3的石块用细线系着浸没在装水的圆柱形容器中容器中水的深度由10cm上升到12cm容器的重力 sketch template

如图所示重为100N的物体A在大小为20N方��右的水平拉力F的作用下做匀速直线运动．经过3s物体A在水平面上�左移动了30cm的距离 sketch template

如图所示．用力的示意图画出木箱受到的支持力．——青夏教育精英家教�—— sketch template

百度教育 sketch template

如图所示将一重为18N体积为2×10 3m3的蜡块用细线系在弹簧测力计的挂钩上将它浸没在酒精中则蜡块受到的浮力是16N此时弹簧测力计 sketch template

如图所示重为5N的木块A在水中处于静止状态此时绳子的拉力为3N．若绳子突然断了木块在没有露出水面之前受到合力的大小和方�是 A sketch template

如图所示斜面长5m高3m小明用绳子沿斜面将重为300N的木块由斜面底端匀速拉到顶端拉力大小为240N绳重不计．求1小明做的有 sketch template

如图所示A物体重力为20N在力F的作用下沿水平地面做匀速直线运动物体运动了5m弹簧测力计读数为5N若不计绳与轮之间的�擦和绳重则A sketch template

如图所示重500N的人站在重2500N的船上用�轮组把船匀速拉�岸边人和船相对静止．船受到水的阻力为900N．不计绳重和�轮轴�擦人拉 sketch template

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