如图1所示长为5m的细绳的两端分别系于竖立在地面上相距为4m的两杆的顶端ab 绳上挂一个光�的轻质挂钩其下连着一个重为12n的物体 Sketch Coloring Page

如图1所示长为5m的细绳的两端分别系于竖立在地面上相距为4m的两杆的顶端ab 绳上挂一个光�的轻质挂钩其下连着一个重为12n的物体 Template

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tomski如图1所示长为5m的细绳的两端分别系于竖立在地面上相距为4m的两杆的顶端ab 绳上挂一个光�的轻质挂钩其下连着一个重为12n的物体 coloring

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如图1所示长为5m的细绳的两端分别系于竖立在地面上相距为4m的两杆的顶端AB 绳上挂一个光�的轻质挂钩其下连着一个重为12N的物体 sketch template

如图所示长为5m的细绳的两端分别系于竖立在地面上相距为4m的两杆顶端AB绳上挂一个光�的轻质挂钩它钩着一个重为12N的物体平衡时绳中 sketch template

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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

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如图所示A、B两小球分别用轻质细绳L1和轻弹簧系在天花板上A、B两小球之间用一轻质细绳L2连接细绳L1、弹簧与竖直方�的夹角均为θ细绳 sketch template

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如图所示用一根长为L的细绳一端固定在O点另一端悬挂质量为m的小球A为使细绳与竖直方�夹30°角且绷紧小球A处于静止则需对小球施加的 sketch template

如图所示将一质量为m的�锤用长为L的细绳吊起上端固定使�锤在水平面内做匀速圆�运动细绳就沿圆锥面旋转构成一个大型圆锥�如果细绳与 sketch template

题目A B两列火车在同一轨道上同�行驶A车在前其速度vA =10m/sB车在后速度vB =30m/s．因大雾能见度很低B车在 sketch template

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如图所示一长为R的细绳的上端固定在天花板上靠�墙壁的O点下端拴一小球L点是小球下垂时的平衡位置Q点代表一固定在墙上的细长钉子位于OL sketch template

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如图所示长为L的细绳一端固定在O点另一端拴住一个质量为m的小球在O′点处有一枚与竖直平面垂直的钉子O′与竖直方�成θ=37°角．把球拉 sketch template

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如图所示质量均为m的ABC三个物体静止在光�水平面上BA之间有压缩着的弹簧物体C以v0速度�右冲来为了防止冲撞弹簧将BA�左 sketch template

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