小U博学! : {+ _6 E. [" r2 m7 ]# {( |0 P " p; @% ^& y5 @7 C" Y2 `volocity = radius X owmega squared, n' K( v. K" o7 _( C- z; P2 V9 {
The greater the radius, the greater the voloctiy, then the less pressure , M* t! M8 ^. \4 k* P) 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。 : ^; ]: s3 k: l l6 Z0 Q