小U博学! ( t# W3 |5 a1 U4 H- ]$ @8 B k/ o5 }+ h3 C5 s" Jvolocity = radius X owmega squared: B7 W0 S- T* Z+ Z) f
The greater the radius, the greater the voloctiy, then the less pressure % w% r: l# w, E( m
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- B8 a. E! ?( Y+ B2 }. y