小U博学! 6 T! c F2 `2 y3 ]' ^0 k# y; x- x3 p( s. L* r( E' F
volocity = radius X owmega squared. Z& ?; b9 m! `" Q: F1 v2 \2 }
The greater the radius, the greater the voloctiy, then the less pressure 1 v! w, B5 T8 K* }# |: u! H8 Y& ] W2 D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。0 {8 x2 Q$ R3 n4 \7 M