朋友们,最近雷军 SU7 发布会那个 60 公里对撞等于 120 公里的说法,真的吵翻了天!今天咱不吹不黑,把这事说透。 首先,两车 60km/h 对撞,相对速度确实是 120,这话数学上没毛病。但问题就出在,直接等同于 120km/h 撞墙,这就太不严谨了! 懂点物理的都知道,动能是和速度平方成正比的,60 对撞的能量,根本达不到 120 撞墙的级别。这种为了发布会效果的夸张表述,很容易误导...
Source Link朋友们,最近雷军 SU7 发布会那个 60 公里对撞等于 120 公里的说法,真的吵翻了天!今天咱不吹不黑,把这事说透。 首先,两车 60km/h 对撞,相对速度确实是 120,这话数学上没毛病。但问题就出在,直接等同于 120km/h 撞墙,这就太不严谨了! 懂点物理的都知道,动能是和速度平方成正比的,60 对撞的能量,根本达不到 120 撞墙的级别。这种为了发布会效果的夸张表述,很容易误导...
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