质量为m的物体在距离地面h高处由静止竖直下落到地面下落的加速度为45g下列说法中错误的是 A．物体的机械能减�15mghb．物体的动能 Sketch Coloring Page

质量为m的物体在距离地面h高处由静止竖直下落到地面下落的加速度为45g下列说法中错误的是 A．物体的机械能减�15mghb．物体的动能 Template

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sketchmaster
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anonymous
sketch #4915 Marshall Lee Gopal Gopi

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anonymous
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tomski质量为m的物体在距离地面h高处由静止竖直下落到地面下落的加速度为45g下列说法中错误的是 a．物体的机械能减�15mghb．物体的动能 coloring

质量为m的物体在距离地面h高处由静止竖直下落到地面下落的加速度为45g下列说法中错误的是 A．物体的机械能减�15mghB．物体的动能 sketch template

5．如图所示质量为M的斜劈形物体放在水平地面上质量为m的粗糙物块以某一初速度沿劈的斜面�上�至速度为零后又加速返回而物体M始终保持静止 sketch template

如图所示质量为M倾角为θ的斜面体放于水平面上质量为m的物块放在斜面上它们之间的�擦力都忽略不计．要使物块相对斜面静止不动斜面体�左 sketch template

质量为m的小球以速度v在距地面高为H的水平光�平台上运动当它离开平台经过距地面高为h的某一点时它具有的机械能为忽略空气阻力以地面为零 sketch template

关于角动量的基础例题（浅学版）知乎 sketch template

9．设质量为m的小球从离地面高为h处自由下落着地后又被反弹回原处．在小球与地面碰撞的过程中小球所受的冲量的大小为 应用动量定理求解 sketch template

如图所示电梯质量为M它的水平地板上放置一质量为m的物体电梯在钢索的拉力作用下由静止开始竖直�上加速运动当上升高度为H时电梯的速度达到 sketch template

11．如图所示质量均为m的两物体bc分别与轻质弹簧两端相连接将它们静止放在地面上弹簧劲度系数为k一质量也为m 小物体a从距b物体h sketch template

21．如图所示质量为m的物体在平行于斜面�上的力F作用下沿放在水平地面上的质量为M的粗糙斜面匀速下�此过程中斜面保持静止则地面对斜面 A sketch template

如图所示质量m的物体静止在倾角θ的斜面上当斜面沿水平方��右匀速移动了距离s时物体m相对斜面静止．下列关于力对物体做功的说法中正确的是 sketch template

如图所示质量均为m的物体AB通过一根劲度系数为k的轻弹簧相连开始时B放在地面上AB都处于静止状态．现用手通过细绳缓慢地将A�上提升 sketch template

质量为m的物体在距地面h高处以g/3的加速度由静止竖直下落到地面下列说法中正确的有 A 物体的重力势能减�mghB 物体的机械能 sketch template

质量为m的物体放在质量为M倾角为θ的斜面体上斜面体置于粗糙的水平地面上用平行于斜面的力F拉物体m使其沿斜面�下匀速运动M始终静止则 sketch template

9．如图所示质量为M的光�半圆槽置于光�水平地面上质量为m的物块沿半圆槽从 静止开始�下则物块在半圆槽内�动的——青夏教育精英家教�—— sketch template

8．如图所示质量为m的物体A静止在地面上上表面带有弯钩一弹簧秤由弹簧带有挂钩的拉杆和带有提环的外壳组成可以认为弹簧秤的 总质量集中 sketch template

如图所示质量为m的物体静止在倾角为θ的斜面上物体与斜面的动�擦因数为μ现使斜面水平�左匀速移动距离L．试求1�擦力对物体做的功 sketch template

如图所示ABC三个物体的质量均为mBC两物体与一轻随轻质弹簧相连静止在水平地面上弹簧劲度系数为k．物体A从距物体B某一高度h处由 sketch template

一块质量为m的木块静止放在地面上如图所示用恒力F拉木块使木块离开地面如果木块上移的距离为h则 A．木块的动能增加了FhB．木块的 sketch template

质量为m的物体静止在倾角为θ的斜面上当斜面沿水平方��右匀速移动了距离s时如图所示物体m相对斜面静止则下列说法正确的是 A．合力对 sketch template

质量为m的小球从离地面H高处从静止开始释放落到地面后继续陷入泥中h深度而停止设小球受到空气阻力为f则下列说法正确的是 A小球落地时 sketch template

7．如图所示质量为m的物体静止在倾角为q的斜面上物体与斜面间的动�擦因数为m现在使斜面体�右水平匀速移动距离l则�擦力对物体所做的功为 sketch template

如图所示质量均为m的物体AB通过一根劲度系数为k的轻弹簧相连开始时B放在地面上AB都处于静止状态．现用手通过细绳缓慢地将A�上提升 sketch template

如图所示在水平面上有一质量为m的物体在水平拉力作用下由静止开始运动一段距离后到达一斜面底端这时撤去外力物体冲上斜面上�的最大距离和在 sketch template

质量为m的物体以速度v0竖直�上抛出物体落回地面时速度大小为7v0/8设物体在运动中所受空气阻力大小不变如图所示求1物体在 sketch template

1静止的物体1下图1中，物体A静止在水平地面上图2中，物体B静止在斜面上图3中，物体C被压在竖直墙壁上而处于静止 sketch template

如图所示质量为m的物体放在倾角为θ的斜面上它跟斜面间的动�擦因数为μ在水平恒定的力F作用下物体沿斜面�上匀速运动则物体所受的�擦力是 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

16．如图所示一个质量为M的物体放在水平面上物体上方安装一个长度为L劲度系数为k的轻弹簧现用手拉着弹簧上端的P点缓慢�上移动直到物体 sketch template

如图所示质量为m的物体放在水平桌面上在与水平方�成θ角的拉力F作用下加速�前运动已知物体与桌面间的动�擦因数为μ则下列判断正确的是 sketch template

如图所示质量为m的物体在与竖直方�成θ角斜�上的推力F作用下沿竖直墙�上做匀加速直线运动若物体与墙间的动�擦因数为μ求物体的加速度 sketch template

如图所示质量为m的物体在的水平力作用下沿倾角为q =30º的斜面�上匀速运动根据力学规律和题中提供的信息你还能求得哪几个作用力及跟�擦 sketch template

6．质量为m的物体在受到与运动方�一致的外力F的作用下经过时间t后物体的动量由mv1增大到mv2若力和作用时间改为都由mv1开始下面 sketch template

质量为m的物体B置于地面上通过一劲度系数为k的轻弹簧与物体A相连开始时AB都处于静止状态如图所示．现通过细绳将物体A�上匀加速提升 sketch template

质量为m的物体由静止开始沿直线运动若物体只受恒力F的作用则对于物体的位移s速度v加速度a和其动量P随时间变化的情况下图中正确的是 sketch template

如图所示一质量为m的物体在沿斜面�上的恒力F作用下由静止从底端�上做匀加速直线运动．若斜面足够长且表面光�倾角为θ．经时间t恒力F做功 sketch template

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