如下图所示重为100n的物体a在水平拉力f的作用下沿水平面以04m／s的速度作匀速直线运动弹簧秤的示数为5n不计�轮绳子弹簧秤的 Sketch Coloring Page

如下图所示重为100n的物体a在水平拉力f的作用下沿水平面以04m／s的速度作匀速直线运动弹簧秤的示数为5n不计�轮绳子弹簧秤的 Template

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tomski如下图所示重为100n的物体a在水平拉力f的作用下沿水平面以04m／s的速度作匀速直线运动弹簧秤的示数为5n不计�轮绳子弹簧秤的 coloring

如下图所示重为100N的物体A在水平拉力F的作用下沿水平面以04m／s的速度作匀速直线运动弹簧秤的示数为5N不计�轮绳子弹簧秤的 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

题目用图甲所示的�轮组运送货物上楼每件货物重100N每次运送的量不定图乙记录了在整个过程中�轮组的机械效率随货物重力增加而变化的图象 sketch template

如图所示重100N的均匀木棒悬挂在空中在竖直�上的力F作用下保持静止以点O为支点请你画出力F的力臂L和木棒所受重力的示意图．题目和 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

题目如图所示在水平拉力F的作用下重100N的物体A沿水平桌面做匀速直线运动弹簧秤B的示数为10N则物体A与水平桌面的�擦力大小为 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

【题目�用图甲所示的�轮组运送货物上楼，每件货物重100N，每次运送的量不定，图乙记录了在整个过程中�轮组的机械效率随货物重力增加而变化的图象 sketch template

用图甲所示的�轮组运送货物上楼每件货物重100N每次运送的量不定图乙记录了在整个过程中�轮组的机械效率随货物重力增加而变化的图象由图 sketch template

如图所示一重为120N的球固定在弹性杆AB的上端今用测力计沿与水平方�成37°角斜�右上方拉球使杆�生弯曲此时测力计的示数为100N sketch template

如图所示重500N的物体在100N的水平拉力作用下沿水平地面以05m/s的速度匀速运动10s．在这个过程中拉力做功的功率是 sketch template

10．用图所示的�轮组水平拉动重为100N的物体以05 M／s的速度在水平地面上匀速运动若物体受到的�擦力为60 N不计机械自重和�擦 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�轮重1N悬挂在弹簧秤下端作用在绳端的拉力F是2N物体G重100N则弹簧测力计的示数是 N．题目和参考答案——青夏教育精英 sketch template

如图所示一重为120N的球固定在弹性杆AB的上端今用测力计沿与水平方�成37°角斜�右上方拉球使杆�生弯曲此时测力计的示数为100N sketch template

如图所示用动�轮把重400N的物体在20s内匀速提高10m拉力所做的功为5000J．求1动�轮的机械效率2拉力的功率．题目和 sketch template

如图所示重为100N的物体B在足够深的水中匀速下沉通过�轮组拉着重600N的物体A沿水平方�匀速运动在4s内物体A移动了08米已知 sketch template

如图所示装置物体B重为100N它在水中匀速下沉时通过�轮组拉着重200N的物体A在水平面上匀速运动．当用一个水平�左的力F1拉物体A使 sketch template

用如图所示的�轮组匀速提升重为100N的物体拉力F=60N�轮组的机械效率为 在物体匀速上升的过程中物体的动能 物体的重力势能选 sketch template

如图所示重为100N的物体A在水平拉力F的作用下沿水平面以04m／s的速度作匀速直线运动弹簧测力计的示数为5N不计�轮绳子弹簧测 sketch template

3．如图所示重为100N的物体在水平�左的力F=20N作用下 以初速度v0沿水平面�右�行已知物体与水平面的动�擦因数 为02则此时 sketch template

如图所示重100N的物体A在拉力F的作用下以1m/s的速度在水平面上匀速直线运动了2s该装置的机械效率为80%．上述过程中 A．墙面 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

如图8所示物体重100 N当它沿水平面运动时受到的�擦力大小为60 N用�轮组使物体沿水平面以02 M/s的速度匀速运动20 s若绳 sketch template

如图所示用F为40 N的拉力通过�轮组拉着重为300 N的物体A在水平面上以04 M/s的速度�左做匀速直线运动物体受到的�擦力是物重 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

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用一动�轮把重为100N的物体匀速提到4m高处作用在绳末端的拉力为75N则�轮组的机械效率为 A．133%B．75%C．66 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

如图所示重20N的物体B在水平拉力F作用下做匀速直线运动这时弹簧测力计的示数为6N则以下说法正确的是 A．地面�擦力是26NB．拉力 sketch template

如图所示重为80N的物体在大小为20N方�水平�右的拉力F1作用下在水平面上以2m/s速度做匀速直线运动．当撤去拉力F1物体静止后 sketch template

如图所示的�轮组拉动物体A沿水平地面匀速前进已知物体A的重力为500N拉力大小为50N则物体与地面间的�擦力f=150150N若物体 sketch template

如图所示重为G的物体A放在粗糙的斜面上处于静止状态若用一个方�始终沿斜面�上大小从零开始逐渐增大的变力F作用在物体上使物体从静止状态 sketch template

边长是10cm的正方体物体重为25N沿斜面匀速下�已知斜面对物体的支持力是12N则物体对斜面的压强为12001200Pa．题目和参考 sketch template

如图所示重为80N的物体在大小为20N方�水平�右的拉力F1作用下在水平面上以2m/s速度做匀速直线运动．当撤去拉力F1物体静止后 sketch template

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