ELI5: How do things actually move if there is net force's are zero? explainlikeimfive

I know that in order for an object to be at rest it has a net force of zero acting on it. It makes sense if you push against a refrigerator with 5N of force, the friction of the refrigerator pushes back with 5N.

But how can objects move if their net force is zero? For instance, say I push against a refrigerator with 20000N and now its moving at a constant velocity. Well, now the friction of the floor is pushing back with an equal force of 20000N due to Newton's first law. So if I push with 20000N and it the friction pushes back with 20000N how can it possibly move? Is this due to the fact that the refrigerator has a certain amount of weight?

Submitted November 13, 2017 at 03:13AM by 123acava123 http://ift.tt/2zRZjDw explainlikeimfive