图示均质圆盘质量为m,绕固定轴O转动,角速度均为w。动能为（）。<img src="/lqwvjeImg/32/324df6006ccc1b7e2dffef0111a80079.jpeg" style="width:181px;height:178px;"><br>·T=mr2w2<br>·T=<img src="/lqwvjeImg/a0/a0539226eebe908db29b61eed2c998cf.jpeg"style="width:30px;height:67px;">mr2w2<br>·T=<img src="/lqwvjeImg/80/801dd1e7b103380d3448c4e11377c441.jpeg"style="width:24px;height:59px;">mr2w2<br>·T=<img src="/lqwvjeImg/83/83d1e5a7e10752533d91800c9de12720.jpeg"style="width:20px;height:60px;">mr2w2