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Is the coefficient of dynamic friction greater than the coefficient of static friction and why?
Wiki User
∙ 16y ago
Millions of classroom experiments would indicate that there is, in fact, a difference, but it is most likely caused by dirt, oil, and imperfections on the surfaces. When care is taken to ensure the surfaces are uniform and clean, the difference between static and dynamic friction disappears.
Wiki User
∙ 16y ago
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Values of static and dynamic coefficient of friction for concrete to soil?
0.45
Is coefficient of friction or coefficient of limiting friction are same?
Limiting friction is just the maximum static friction force (if you go over that point static friction becomes kinetic friction).Let f = frictional force,c = coefficient of frictionN = Normal forcefmax = cN = limiting frictionAlthough the term coefficient of limiting friction is not really used, I'd assume it would just be "c" (it's a coefficient after all). So they would be the same.If you meant is coefficient of friction the same as limiting friction, than the answer is no. Coefficient of friction is just the "c" in the equation. Limiting friction however is the product of the coefficient and the normal force.
What is the equation for static friction?
Fs=mu*FNFs=Static Friction mu=coefficient of static friction FN=Normal force
If your pulling 30 lb tire on a lawn what is the estimated weight youre actually pulling because of friction?
the equation for static friction coefficient is:static friction coefficient = force required to break bond / weight of object (tire)you need the friction coefficient between rubber and grass, say its 0.5, this means the force you have to apply to equal the friction force is:0.5 = x / 30x = 0.5 * 30x = 15 lbs fanything greater than 15 lbs f will break the bond and accelerate the tire.notes :1 / moving friction coefficient is usually less than static friction coefficient, so youve less drag once its moving.2 / friction coefficients are never greater than 1.0actually , some friction coefficients do exceed 1.0 , see google / friction coefficients table
Could you use wood for static friction?
Wood, or any other material, could be used to introduce static friction to a system. The choice of material(s) depends on how much static friction the system requires. Each material has its unique coefficient of friction.
Which coefficient of friction is greater static or kinetic?
static usully greater then kinetic
Values of static and dynamic coefficient of friction for concrete to soil?
0.45
If the coefficient of static friction is 0.75 what is the coefficient of dynamic friction?
less than 0.75 and in exceptional cases equal to 0.75,eg.when the friction between two teflon surfaces is considered
Why the coefficient of static friction is greater thant the coefficient of kinetic friction?
When objects are at rest on each other (i.e. static friction) their microscopic irregularities can settle into each other - and can also form electrostatic bonds.
What is more sliding friction or static friction?
static friction is higher in most cases, if you're talking about the coefficient of static or kinetic friction
Which friction is greater sliding friction or static friction?
Static friction
What the value of abs plastic static friction coefficient?
With what material? Coefficient of friction is for two materials.
As soon as an object starts moving what replaces static friction?
Kinetic Friction replaces Static Friction when an object is in motion.
What does the slope of the static friction vs normal force represent?
the slope of static friction & normal force represents "coefficient of friction' which is constant for a particular surface
Is sliding friction greater than rolling friction?
Typically not. However rolling friction is somewhat of a myth. Rolling friction is actually caused by static friction. There are really only two types of friction: Static and Kinetic. That's it! Rolling friction is caused by static friction and the coefficient of friction (which determines its strength) is dependent upon the two materials of interaction.
Describe the factors that cause static friction between two surfaces to increase.?
A higher coefficient of static friction increases the static frictional force. A greater normal force also does this.
How does the coefficient of static friction for two surfaces in contact compare to the coefficient of kinetic friction for the same two surfaces?
The coefficient of static friction is always larger because it takes more initial force to move an object that is at rest.
