一道SAT2物理题,Q:Whenawomanpushesonhergrocerycart,thewomanmovesbecauseof()theansweristheforcethatthegroundexertsonthewoman.Inlightofthenetforce,thewomanhorizontallygetstheoppositereactionfromthecartandthef

问题：一道SAT2物理题,Q:Whenawomanpushesonhergrocerycart,thewomanmovesbecauseof()theansweristheforcethatthegroundexertsonthewoman.Inlightofthenetforce,thewomanhorizontallygetstheoppositereactionfromthecartandthef

答案：↓↓↓

胡秋平的回答：

网友采纳　　不知道你能不能看懂中文,看不懂我再翻译.女子移动是因为在她推cart时,cart也同时给她了一个相互作用力,与她的推力相反.cart没有动是因为那个推力小于它的最大静摩擦力,而女人动了是因为那个相互作用力大于她与地面的最大静摩擦力,从而使女人受的合力相反导致移动.也就是你提到第二种的解释