How things move.

[de.monkeyz]

What I've always wondered about is that when things move whether its an inanimate object or a human moves, they have to pass through every possible point between their begging and end as far as I'm aware. But how big are these spaces? If they do have a size no matter how small it must mean we actually instantaniously travel from one point to another. Sorry if that doesn't make sense I was just confused by it. Does anyone else have any explanations?

 

[noerrorsfound]

I really don't understand the question. :S Anyone else understand it?

 

[Senjai]

Im not quite sure i understand your question, if the question is how things move, like a bx on a table, the force applied to the box must be greater than the force of friction on the box from the table, to make it accelerate, to keep it at a constant speed the forces on the box must be equal. Their is very little free space, between us and the box we can see, 40m away from us, their is enough for us to see it, but enough to constantly oppose our movement, the air around us is mostly gases, if it was all gases, we could not see the box, 40m away from us clearly. we need to walk through these gases etc, as were being pulled down to the ground by grvity, it requires force to do so.

im not sure if that answered your question, or if i understood the question properly, i suggest you take physics if you want to learn this stuff though.

 

[de.monkeyz]

Sorry if the question doesn't seem logical, what I meant is, that when an object moves say 100 metres it travels to every spot inbetween such as 1 metre 2 metres etc. I know how forces interact with the object. But what I'm confused about is the amount of spaces that it will travel through, that're are in between. So say it moves in 1 milimetre increments, that suggests that it instantly travels by 1 milimetre doesn't it?

 

[BentFX]

I think the point he was trying to make is...

If you takes a finite distance, you can divide it into an infinite number of smaller distances. So as an item moves from point A to point B it is actually moving through an infinite number of possible positions. If you try to figure speed given an infinite number of possible positions, moving through them in a finite amount of time it would on the surface equate to elapsed time divided by infinity

[edit] missed that last post...[/edit]

 

[de.monkeyz]

I think your post is better than mine, alot more detailed and fancy unfortunatly my physics ain't that great since I'm a D student in it at the moment >.< But thanks for that post.

 

[BentFX]

Just remember speed = distance / time -or- distance = speed * time

think about the second equation. You can't have an instantaneous movement because...
speed * 0(time) = 0(distance)

 

[de.monkeyz]

Ah thanks, that question has been bugging me for years ^^ Very greatful for the help