- #1
jocanon
- 14
- 1
Inertia -- Why does it exist?
Can someone explain to me in terms of a thought experiement (not equations, please) why it is that inertia exists given that motion is only defined as it relates to another point of reference and given that there is no fixed point of reference but everything is relative? Who's to say something is moving or even accelerating unless defining it relative to another object and then who's to say it's not the other object accelerating and you are standing still...so I don't see how inertia even exists given all these facts.
Can someone explain to me in terms of a thought experiement (not equations, please) why it is that inertia exists given that motion is only defined as it relates to another point of reference and given that there is no fixed point of reference but everything is relative? Who's to say something is moving or even accelerating unless defining it relative to another object and then who's to say it's not the other object accelerating and you are standing still...so I don't see how inertia even exists given all these facts.