小U博学! * F0 z; S. }4 {' L! J, V4 V0 {* t5 I2 v/ ]. [
volocity = radius X owmega squared5 ]$ A" s1 K( s( {; i7 Z
The greater the radius, the greater the voloctiy, then the less pressure + B: N! c- i% `; U. a6 {
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。9 P0 n, L0 J( P9 X