小U博学! / Y! Z' F5 A& T! t9 V6 |7 l% H3 k. C# H; A1 E
volocity = radius X owmega squared1 n$ O, ?7 \8 J9 q [
The greater the radius, the greater the voloctiy, then the less pressure & {0 c9 r( ?) }, Q4 L4 P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。' o) T/ N+ G* |+ p