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阿Q吧 > 汽车在平直公路上做匀速直线运动时，关于汽车的受力情况，下面说法错误的是

汽车在平直公路上做匀速直线运动时，关于汽车的受力情况，下面说法错误的是

2025-04-07 02:37:04

推荐回答（1个）

回答1：

答案D
:以汽车为研究对象，水平方向受牵引力和阻力，竖直方向受重力和支持力。因为匀速运动，所以两个方向均受力平衡。因此ABC项正确。而水平方向上的牵引力、阻力与竖直方向上的重力、支持力数值关系不能确定，因此D项错误。

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