Why is the body moving if every action has equal and opposite reaction?I mean don't the forces cancel each other out?

Question

anonymous · Answer

One of the most prevalent confusion in mechanics.

The forces act on two different bodies. If you push a wall, the wall pushes back at you. So,there is one and only one force acting on each object in question. Hence they do not cancel each each other.

missmob · Answer

but like  if a horse pulls a cart .if the action and reaction are equal and opposite then how does the cart move?

anonymous · Answer

You see, horse pulls cart with a force, F  and the cart pulls horse backwards with force,F. Now, ideally,  cart will move forward towards the horse and horse will be pulled towards the cart. But there is friction between the ground and the feet of the horse which prevents horse from moving backwards.

missmob · Answer

thanks you solved my problem

missmob · Answer

:)