# Centrifugal force intuitive explanation [duplicate]

I would like to know if centrifugal force is only apparent why all the objects in a washing macchine are pressed against the "wall"? I can experience the effects of the centrifugal force even if I am a still observator?

## marked as duplicate by sammy gerbil, Jon Custer, ZeroTheHero, Yashas, Qmechanic♦Jun 18 '17 at 5:23

It's not difficult to show that anything moving in a constant speed in a circular path has an acceleration (rate of change of the velocity vector) towards the centre of the circle. The objects in the washing machine drum have just such an acceleration. But according to $\vec{F}=m \vec{a}$ they must experience a so-called centripetal force towards the centre of the circle in order to have this acceleration. The force comes from the walls of the washing-machine drum, pushing inwards on them. In accordance with Newton's third law of motion, the objects exert an equal and opposite 'outward' force on the drum. These 'contact' forces are electromagnetic in origin.