Question

what do your data say about static frictiona; forces dependence on surface area, noral force and material ? remeber to consider uncertainty

Answer 1

It has nothing to do with the area of contact or the speed of the slide.

Why is surface area a factor in static friction?

The contact area between the two surfaces has no effect on the force generated by friction. But if the surface area is too small, this relationship breaks down, and the coefficient of friction goes up because the object may dig into the surface.

What factors affect the static friction force?

The static coefficient of friction may be affected by time, normal force, contact size, contacting materials' nature, and the presence of intermediate lubricant layers, as Coulomb already demonstrated experimentally.

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