小U博学!- d! C |) {9 B0 O5 s
# ~/ c5 V5 C! e4 r0 i8 x
volocity = radius X owmega squared+ b0 ?# |1 ^1 C5 X& N
The greater the radius, the greater the voloctiy, then the less pressure % ]( b, V) b0 Q2 V* r h
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 ~* |* r6 B$ K+ W) q