(adsbygoogle = window.adsbygoogle || []).push({}); I have a question about Sir Issac Newton's Third Law of Motion. This is the law:

To every action there is always an equal and opposite reaction: or the forces of two bodies on each other are always equal and are directed in opposite directions.

But, how do objects move then? If you push a box with, let's say, 100 N, the box will push on you with 100 N. The total force will equal out to 0 N and nothing will move.

Let's say you're walking. You push on the air with 200 N, the air will push back with "equal and opposite" force, 200 N. Thus equaling out to 0 N meaning you cannot move.

How can this law be true then? Nothing will EVER be in motion according to this law.

The equal and opposite force is put upon yourself. Lets say you punch a wall with 500N. Your hand hurts. But if you punch the air, not much will happen because the air is a gas, it has no definite shape or volume.

So pretty much it ties into the second law of motion? Because air has less mass, those 500 N it exerts on you isn't as prominent as the 500 N the wall exerts on you?

Yes. Pretty much. Everything does push back with equal forces and crap. You just have to use your noodle to figure out most of it.

Yep, I base my life around newtons laws as they are so freeking true!

The object with the greater mass will push the smaller object.