9 ?, w8 e4 E5 M0 |volocity = radius X owmega squared7 i- t! ~/ o b3 k$ e$ C/ X k
The greater the radius, the greater the voloctiy, then the less pressure " m; g/ t, z! q$ J( B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。( M# Y9 y ^- E/ _4 ]. C+ ]/ \