一均质杆AB，长为L，质量为m，以角速度ω绕O轴转动，则杆对过O点的LZ轴的动量矩大小为（)。

A . （7／6）mr ω B . （3／2）mr ω C . （10／6）mr ω D . （9／8）mr ω

A .https://assets.asklib.com/psource/2015103013391695325.jpg B .https://assets.asklib.com/psource/2015103013393034152.jpg C .https://assets.asklib.com/psource/2015103013394349804.jpg D .https://assets.asklib.com/psource/2015103013395676362.jpg

A . （m1r+m2https://assets.asklib.com/psource/2015110209540868947.png ）wB .https://assets.asklib.com/psource/2015110209545823493.png C .https://assets.asklib.com/psource/2015110209550258813.png D .https://assets.asklib.com/psource/201511020955055656.png

A . A B . B C . C D . D

A .https://assets.asklib.com/psource/2015103013292779880.jpg B .https://assets.asklib.com/psource/201510301329465757.jpg C .https://assets.asklib.com/psource/2015103013300053333.jpg D .https://assets.asklib.com/psource/2015103013301585099.jpg

A . ['['https://assets.asklib.com/psource/201510301504278200.jpg B .https://assets.asklib.com/psource/2015103015044437078.jpg C . mι2ωD .https://assets.asklib.com/psource/2015103015045744987.jpg

A .https://assets.asklib.com/psource/2015103013265422087.jpg B .https://assets.asklib.com/psource/2015103013271915309.jpg C .https://assets.asklib.com/psource/2015103013280163083.jpg D .https://assets.asklib.com/psource/2015103013283476838.jpg

A .https://assets.asklib.com/psource/2015103014561238313.jpg B .https://assets.asklib.com/psource/2015103014562263140.jpg C .https://assets.asklib.com/psource/2015103014571540914.jpg D .https://assets.asklib.com/psource/2015103014572647006.jpg

A . （1／12）ml ω B . （7／24）ml ω C . （7／48）ml ω D . （7／96）ml ω

A .https://assets.asklib.com/psource/2015103014503984624.jpg B .https://assets.asklib.com/psource/2015103014505084240.jpg C .https://assets.asklib.com/psource/2015103014510485319.jpg D .https://assets.asklib.com/psource/2015103014512148828.jpg

A .https://assets.asklib.com/psource/2015110209562827248.png B .https://assets.asklib.com/psource/2015110209563284479.png C .https://assets.asklib.com/psource/2015110209563555990.png D .https://assets.asklib.com/psource/2015110209563846737.png

A . A B . B C . C D . D

A、LO=ml2ω B、LO=ml2ω C、LO=ml2ω D、以上答案不对 <img src='https://img2.soutiyun.com//1/2021-05-21/99046406467437.png' />

<img src='https://img2.soutiyun.com/ask/uploadfile/5088001-5091000/0a17aa9b2811a784c73e007ea80e7b60.jpg' /> A．<img src='https://img2.soutiyun.com/shangxueba/ask/5088001-5091000/5089780/onerrorimg.jpg' /> B．<img src='https://img2.soutiyun.com/shangxueba/ask/5088001-5091000/5089780/onerrorimg.jpg' /> C．<img src='https://img2.soutiyun.com/shangxueba/ask/5088001-5091000/5089780/onerrorimg.jpg' /> D．<img src='https://img2.soutiyun.com/shangxueba/ask/5088001-5091000/5089780/onerrorimg.jpg' />

<img src='https://img2.soutiyun.com/ask/2020-04-21/95630853844841.png' /> (1)子弹与杆开始共同运动的角速度; (2)子弹与杆共同摆动能达到的最大角度。

<img src='https://img2.soutiyun.com/ask/uploadfile/2295001-2298000/4fc3fa773ba3ff1b4a790c7f86a536e7.jpg' /> A．<img src='https://img2.soutiyun.com/ask/uploadfile/2295001-2298000/4fc3fa773ba3ff1b4a790c7f86a536e7.jpg' /> B．<img src='https://img2.soutiyun.com/ask/uploadfile/2295001-2298000/4fc3fa773ba3ff1b4a790c7f86a536e7.jpg' /> C．4mlω D．3mlω

<img src='https://img2.soutiyun.com/shangxueba/ask/18612001-18615000/18613197/2016071916413125244.jpg' /><img src='https://img2.soutiyun.com/shangxueba/ask/18612001-18615000/18613197/2016071916413655485.jpg' /> A．A B． B C． C D． D

A．（m1r+m2<img src='https://img2.soutiyun.com/shangxueba/ask/19017001-19020000/19018430/2015110209540868947.png' />）w B．<img src='https://img2.soutiyun.com/shangxueba/ask/19017001-19020000/19018430/2015110209545823493.png' /> C．<img src='https://img2.soutiyun.com/shangxueba/ask/19017001-19020000/19018430/2015110209550258813.png' /> D．<img src='https://img2.soutiyun.com/shangxueba/ask/19017001-19020000/19018430/201511020955055656.png' />