小U博学!* z. s2 w3 `% s- b* s1 H
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volocity = radius X owmega squared 2 O, t9 v8 i% d5 B2 _" E- VThe greater the radius, the greater the voloctiy, then the less pressure 2 J0 P9 o" S! S0 s( C, B
上面杯子的半径大,转速快,压力小。反之下面的半径小,转速慢,压力大。所以产生了一个升力,从而托住了杯子。 8 O; S7 q, a( }. {8 F4 U