小U博学!% e( F, t# ~; H- n, y2 n7 h
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volocity = radius X owmega squared- n- O3 R7 u7 {! n
The greater the radius, the greater the voloctiy, then the less pressure 0 ]& G% X7 l& H1 ] c: U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。. g2 d. `6 \/ y4 J8 ~# p/ N