小U博学! / ?4 u7 A" m a! X, S" ^3 N, C$ m! V) }4 }: o7 X+ O# H% o" l
volocity = radius X owmega squared* D) W5 G" F/ E- {0 G
The greater the radius, the greater the voloctiy, then the less pressure - {5 ^( {# C3 r- ~0 p( s. r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。 / H7 Z6 }8 J( _7 x5 ]1 _4 q0 A