如图所示，两个半径和质量相同的均质圆盘A、B放在光滑水平面上，分别受到FA、FB的作用，如图所示，如FA＝FB，但在盘上作用的位置不同，则此两圆盘在任一瞬时的质心加速度的关系为（　　）。题54图

A、<img width="26" height="21" id="图片 1801" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/e802cf14-b412-43eb-98eb-a6fdd50cc00d.png" />与<img width="31" height="22" id="图片 1805" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />异向等值

B、<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/e802cf14-b412-43eb-98eb-a6fdd50cc00d.png" />与<img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />同向等值

C、<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/e802cf14-b412-43eb-98eb-a6fdd50cc00d.png" />与<img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />同向，但<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/a90fe5de-dc6f-4b7c-9a90-7d66183c0078.png" />＞<img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />

D、<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/e802cf14-b412-43eb-98eb-a6fdd50cc00d.png" />与<img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />同向，但<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/a90fe5de-dc6f-4b7c-9a90-7d66183c0078.png" />＜<img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />