2006-07-05 09:49:41 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Physics
and give an explanation to your answer please
2006-07-05 09:51:36 · update #1
The coefficient of friction is an experimentally-derived value dependent only on the properties of the two materials that are brought into contact. The force of friction, however, will increase linearly with the force exerted normal to the plane of interaction (in this case, the weight).
Also, you're kinda cute.
2006-07-05 10:07:38 · answer #1 · answered by Argon 3 · 0⤊ 2⤋
No. The coefficient of kinetic friction is independent of either the weight or the speed of the moving bloc. In most workable models in physics, some initial conditions are idealized. In this case, for most problems that you will encounter, the standard model of friction is the assumption. Under such model, the coefficient of kinetic friction depends only on the roughness of the supporting surface. Dan B
2016-03-27 05:09:51 · answer #2 · answered by Anonymous · 0⤊ 0⤋
NO.
Definitely not.
f=uN
f -force of friction
u - coefficient of kinetic friction
N normal to the surface force generated by the weight of the block and perpendicular to the surface.
Coefficient of friction depends only on contact surfaces (back of the block and the surfaces it slides upon)
2006-07-05 10:12:59 · answer #3 · answered by Edward 7 · 0⤊ 0⤋
Both static are kinetic friction coefficients are generally stated as constants independent of the normal force. A convenient approximation.
Its certainly true that the friction force is not an *exactly* linear function of the normal force.
2006-07-05 10:09:33 · answer #4 · answered by Ethan 3 · 0⤊ 0⤋
coefficient of kinetic friction does not depend on the weight of the object. It depends only on the kind and shape of surfaces that are in touched. If the surface of an object is seen through a microscope, then we will be able to observe that it is rough.
2006-07-05 12:09:21 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The coefficient is based on material properties, and the contact forces between two objects. Think about a block covered by sandpaper sliding on a wood table, and a block of equal mass covered by plastic sliding on the same table, with the same amount of force as the sandpaper block. The sandpaper block would not travel as far as the plastic, dues solely to the properties of the relationship between sandpaper/wood as opposed to plastic/wood.
2006-07-05 10:08:19 · answer #6 · answered by MackDaddy D 1 · 0⤊ 0⤋
It shouldn't, since the coefficient is a dimensionless "constant". Now, the force of friction is something else.
2006-07-05 09:55:30 · answer #7 · answered by Randy G 7 · 0⤊ 0⤋
no, the coefficent of friction is only dependant on the two materials being pressed together.
2006-07-05 09:56:40 · answer #8 · answered by full.frozen@sbcglobal.net 1 · 0⤊ 0⤋
Do your own homework !!
:-)
2006-07-05 09:52:41 · answer #9 · answered by sam21462 5 · 1⤊ 2⤋