2006-09-11 07:14:14 · 9 answers · asked by Let'slearntothink 7 in Science & Mathematics ➔ Physics
Here's a logical rather than physical answer :
If the kinetic frictional force was higher than the static force, you'd be stopped instantaneously by the kinetic force as soon as you would overcome the static force, so all movement of two surfaces on each other would be impossible.
Therefore, the static force must be higher than the kinetic force :)
2006-09-11 08:43:19 · answer #1 · answered by Anonymous · 2⤊ 2⤋
dynamic or kinetic friction a sliding object requires a force to be applied continuously. in order to maintain constant felocity, in both cases the force which must be overcome or balanced by external applied force is called force of friction
STATIC is when an object at rest on a table say, thet does not necesserily move when horizontal force acts on it.
2006-09-18 06:45:34 · answer #2 · answered by Anonymous · 0⤊ 1⤋
No matter how smooth an object looks, when you "zoom in" enough, you will see that it is rigid.
The bottom of the object and the top of the surface each look like the blades of a saw (\/\/\/\/\/\/\/\/ - bottom of object
top of surface- /\/\/\/\/\/\/\/\).
So when the object is sitting in a valley of the surface it needs to be pushed/pulled with enough force to to get out of the valley. Once the object is out of the valley, the object just touches the peaks of the surface until it is at rest again.
2006-09-11 09:29:56 · answer #3 · answered by ? 3 · 2⤊ 0⤋
Newton had this one all figured out for us:
An object in motion will stay in motion unless acted upon by an opposing force.
An object at rest will stay at rest unless acted upon by a force.
Simply put, this means an object in motion will resist the friction and try to stay in motion while an object at rest will utilize the friction to try and stay at rest.
2006-09-11 11:13:52 · answer #4 · answered by LeAnne 7 · 0⤊ 2⤋
more electron bonds can form at rest (static) than while moving (kinetic) which actually schreds electrons and atoms off of the two surfaces.
2006-09-11 07:17:12 · answer #5 · answered by holden 4 · 1⤊ 0⤋
Momentum.
2006-09-19 05:55:38 · answer #6 · answered by Anonymous · 0⤊ 1⤋
Well...I guess It has something to do with electromagnetics...
But maybe when an object has no velocity, it somehow sticks its atoms to the atoms of its serroundings and therefore needs more force to move,for example vandervalce(I live in Iran so don`t complain about spelling!) force between atoms has to be OVERFORCED........
2006-09-11 07:26:03 · answer #7 · answered by 3d gangstaa 1 · 0⤊ 3⤋
because it is mostly done by air which is less densed
2006-09-18 00:23:56 · answer #8 · answered by david w 5 · 0⤊ 1⤋
I don't know :)
2006-09-11 07:17:51 · answer #9 · answered by Jordan E 1 · 0⤊ 2⤋