小U博学! : M2 h9 e5 @7 r" i+ P ' C* B- H0 k* ~" G; c7 D; hvolocity = radius X owmega squared 0 A2 Z, f, F8 w2 ~The greater the radius, the greater the voloctiy, then the less pressure # P# t3 l" C+ C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。/ ~- T$ J$ c) Q7 z