小U博学!, b2 r$ s" L& A
5 D7 W0 f/ o% {0 w+ l
volocity = radius X owmega squared 0 U& k$ u; y3 H1 K! sThe greater the radius, the greater the voloctiy, then the less pressure : K% ^# a2 E' N% W n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。 1 W/ j& J$ Q+ M0 y( |