小U博学! 3 g" S7 n+ Y7 r/ y5 R* Y7 Q( |5 I3 c' H6 y% z/ z3 v
volocity = radius X owmega squared+ Z* K2 A- n. s8 O- s' T
The greater the radius, the greater the voloctiy, then the less pressure 2 `! o2 z$ z z3 l( E) V
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。6 ?5 d* M# J/ c% u; O$ {