杆球模型受力分析图解
![解析:在最低点时杆对球一定是拉力,在最高点杆对球可能是拉力,也可能](https://imgs.wantubizhi.com/img/ADDA3C5D760C6828B77B505A29D43E83B6835DC59188AFAE9E0086F4DCFEE5DEFF398D198952779162AF855338EB74C5CE77AEADE414A798715EE532A954BBC8A1594D1BA60F283FE1750804B7512D4313D5D8F70F9B1D7EA863D693B7DA698D)
解析:在最低点时杆对球一定是拉力,在最高点杆对球可能是拉力,也可能
图片尺寸1236x715![长为l的轻杆,一端固定一个质量为m的小球,另一端固定在水平转轴o上,杆](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E9065C7CEB17901504666CC708F320040680E7A719D01BCF810512288E911D4565EB14AE581FD3A34F2455DF63ED97B25BE8415AADCF12D80D7ECF08BD0F982E3C20F8C53ED58550C1C8D8E61DF39212AA)
长为l的轻杆,一端固定一个质量为m的小球,另一端固定在水平转轴o上,杆
图片尺寸354x197![为什么小球b受到轻杆a作用力的方向不一定沿着轻杆?](https://imgs.wantubizhi.com/img/ADDA3C5D760C6828B77B505A29D43E8395CA6603BC7199656C8E5142234E972EE4FC896FB137E835717E5F6B40AE88C767F9210D8159491078062AEF3691E13CB59D5029CDA38CDD2BEC6C90B13E0186303431CCA8D6FD45A4672193D29417E1)
为什么小球b受到轻杆a作用力的方向不一定沿着轻杆?
图片尺寸720x1280![a选项,c选项:对球受力分析,重力,杆oa,ob对球的支持力(沿着杆的方向)](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A737D740AB4EF0AEE5E6F789C37ABF9F50016E912D13CB5BDEC36482151D2E8CE91263980515EFF170A5CFF05A46DFD6DC875A13C83186CE925C4E7C71D8D1EF0798BC69B7320A1EA7BE03817F6FF120F1A)
a选项,c选项:对球受力分析,重力,杆oa,ob对球的支持力(沿着杆的方向)
图片尺寸407x667![解析1对b球受力分析如图所示设细绳的弹力为t则tsin30mg得t2mg](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E9F43108AFF900263CFF797DAA489686D198AD9A33100762139F369F97D7B0F013C057F336B4001E46D3418254BD4A7D7442757EFB3D3ACC706FFEE9FCA45E4E0A2518C8E742A7A7A3CB463309EBA386EC)
解析1对b球受力分析如图所示设细绳的弹力为t则tsin30mg得t2mg
图片尺寸736x618![问题2:杆球模型: v2 f3 最高点:f2 mg m 拉力 b l v2 v2 mg](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E9F0001B9E63867AFBC994C7401755D9CAC8B46E0472DF438B69002FF7619D9F4FE3AB66A5F20E0AA6AD94981386AC9E20D1E583C73F2DC8F135B4878021B1827CA790D33215370384254BF7F57589D4E0)
问题2:杆球模型: v2 f3 最高点:f2 mg m 拉力 b l v2 v2 mg
图片尺寸1080x810![画出图片中图1-28所示的球,杆的受力图?要有详细的解释哦?](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E9E6DFDE590C698A2CD76D02FEEB992E48EA0890F78C388F120795284C919B7E316F51A7E77EA7B61D166B6246791243E4D825352B8CB224E44451E8AAA126AF83665B6A71F34FBEAD4AF11E8F61BE43FF)
画出图片中图1-28所示的球,杆的受力图?要有详细的解释哦?
图片尺寸612x816![(多选)如图所示,质量和电荷量均相同的两个小球a,b分别套在光滑绝缘杆](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A737187E855C84553511D89135FDD9AC2EDE28D77555D01FD42957C948A03CE8A835A82F91968677EEC1ACDFC31212ECD4A08DAE4AFBA8C9EC93C08E5C6DEC1AF0258471A383A881CA23D9CFD58F2D9B277)
(多选)如图所示,质量和电荷量均相同的两个小球a,b分别套在光滑绝缘杆
图片尺寸630x455![力 fb fy bf fbx a a d bc c c ffy f f 1f 二力杆 f1 f2 力](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A730755AA4C90E2CB66FB0F7C18C33EE3C53A5D77324DDE2B4C21567DD5E6D509B576456AEBFD27C591DFFA8DBF63B1EA00DEFD36B830443771819F125C54CA92FC3B28C5853AA3B9121DF45781FD2381E3)
力 fb fy bf fbx a a d bc c c ffy f f 1f 二力杆 f1 f2 力
图片尺寸1080x810![bc 原来系统静止,分别对a,b两球受力分析,根据平衡条件可知](https://imgs.wantubizhi.com/img/ADDA3C5D760C6828B77B505A29D43E835D7EF9CDEF0F213006A891569784A590DADDE1F0ECAD40ECDD678E65314420F8672A78420F918253F1E8E81D3AC596AFA225B42A4251298680D5C9FF8BAE2FECDB1A2D0ABEF9CD58E432A3DEC4A34D7C)
bc 原来系统静止,分别对a,b两球受力分析,根据平衡条件可知
图片尺寸627x380![如图 物理小球受力分析](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E9AD2D07F48FE359C5C2331E0CBEAC80E56AC23E59FFE9792CAB5DD4CC64E360EA81C34E91A6F6EF018AAB0CF42FC6DF6A9EDF18FC787742C6AE7289474B01F46C9B73EFA89EBEF6F0E16966B1D5B72C7C)
如图 物理小球受力分析
图片尺寸2592x1728![解析 (1)由于小球处于平衡状态,对小球受力分析如图所示 ftsin θ=qe](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A736321604224DC28B8E3255C497D709F922B8715D27C9B610ED1EEE9A1BDBB43A6D97FD8FE267C263A6C50F581C763C385900712161EAEE23E7AD1D4E8AEF97799A49E5EE8A01CAFDD3694EAF6EF1FDA83)
解析 (1)由于小球处于平衡状态,对小球受力分析如图所示 ftsin θ=qe
图片尺寸630x750![请用力的图示画出弹性杆对小球的弹](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A73F110C805693AFA51ECEBB4D8EC24AD7AF898922CB08912B2900D09897285504692D327D33DF72D849AF18A3B507E6021F603C84DEE610879370998E03B45EFA73A6DD61EAC65C1EA46933ED2EFF71806)
请用力的图示画出弹性杆对小球的弹
图片尺寸630x571![这是一道受力分析题,左图是把球和杆看做整体而做的受力分析,我想问](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A7363AB2C0988A8C25005BE983B17A3FE04AB8DF12D33FE0942178D64A55483B1FDC53661F06BC9D4B472F5C92C04F3BE9EC357F533D878DA08FF223EC4FFA780D35B12804E52F7D88F1287F5F87A138F73)
这是一道受力分析题,左图是把球和杆看做整体而做的受力分析,我想问
图片尺寸600x800![a正确,b错误;对球和滑块整体分析,受重力,斜面的支持力 f n,杆的支持](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A73F6AC2A0BF7584223A615C62DF073ADE22A366A964EB5F6B009B4C6DE3B5E12BC10ED16DCDF0BD0CF17045B3AFF9B34B273FF099D271EFBC0DE44070AEF3D98E5E5C693236A41948BCA1740EBD38B0448)
a正确,b错误;对球和滑块整体分析,受重力,斜面的支持力 f n,杆的支持
图片尺寸1315x855![以下关于刚性杆或球的受力图,画法错误的是](https://imgs.wantubizhi.com/img/ADDA3C5D760C6828B77B505A29D43E838020C172CB040EC899E5FAF879B4DD2EC9827084100E7FE738A84783FC4436E5AB69AB82AAFA44A8CC862517960CE8B6E8A14626DDC15CEE11BD61FA0562263D9FDCCA89CFD64CE3D6A781CFE8EE599A)
以下关于刚性杆或球的受力图,画法错误的是
图片尺寸461x370![乒乓球打的不好那是你没有学会运用这些物理定理](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E90121EF0885DDD6AF5AE139D7C337AF21ECAC912D813146632B7EFC3FAB8379E6A1B15A98AF9E0A3DB944E0344ACB70335B9FEE9E3D37AC91E9A7B17B776D29A845BA6F9D5CFC8C435B66EE9B5A7D0CCB)
乒乓球打的不好那是你没有学会运用这些物理定理
图片尺寸640x574![答案 解析:甲,乙均静止(无加速度),故a错;对甲,乙分别受力分析可知](https://imgs.wantubizhi.com/img/A1A61BAA66193547F3A6DD7D8EE527E990DE3BCEDBAA4E981A803E9095299E943CA6510C4588AA5EDE77C9A083B9CDE1B3E5AA2E92E1CDA93F8C2258AE15BE5ACC172DB4D0975B81B2C20562FB62AE2BF6317C5AC2B497FE0C1CD5AED14A59C6)
答案 解析:甲,乙均静止(无加速度),故a错;对甲,乙分别受力分析可知
图片尺寸691x500![质量m=2 kg的木块a套在水平杆上,并用轻绳将木块a与质量m=kg的小球](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A73FF659D24727D0C304425483147D6A32A96466AF82ED26DB84DFE49C7FE662A5982AD30443C5CE3314E9F4E2F82FFE94CD1AF0AB75B56FABC9533B37A7F75045A877F16A7FF6DA12F625D455725625EE5)
质量m=2 kg的木块a套在水平杆上,并用轻绳将木块a与质量m=kg的小球
图片尺寸709x511![高中物理,杆的受力分析问题](https://imgs.wantubizhi.com/img/735A5D1F980B52A636CC46F12F2D1A73EB8DA503AD3A587A413F9F5519EA99B85E5D0FEAEDA2B5C9A75811B405A0AABD009D42388AA996BE561DD11FDB9371221B402EB78FA2C387E6CD727662FC99E9AA6F328F479EEE92D6A1ACD17A76186E)
高中物理,杆的受力分析问题
图片尺寸1218x668