小U博学! 7 h6 m8 X& {) y7 j! T! c2 j! u+ P5 J6 G/ u
volocity = radius X owmega squared: l6 b% E# z- Z% T5 J R; |
The greater the radius, the greater the voloctiy, then the less pressure ! ^' S6 J) Y+ f/ j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。; z- S J7 r$ W