And the way in which this roughness affects kinetic friction is called the coefficient of kinetic friction, and it's different for pretty much every combination of materials.

In general, the coefficient of static friction is higher than the coefficient of kinetic friction (for the same materials). The coefficient does not depend on surface area.

Does the coefficient depend on the mass of the object? Again, the model says it doesn't - still a good thing to look at. Does the coefficient depend on speed (for kinetic friction obviously).

Keywords: Seismic performance. Nonstructural components. Static friction coefficient. Kinetic friction coefficient. Rigid blocks. Block-type components. Tilt and pull tests. Dynamic analyses.

The basic formula for friction force is: F = μN where N is the normal force (basically any forces pushing an object toward the ground- weight, downforce, etc.) and mu is the friction coefficient.

A research team led by Prof. Tian-Bao Ma from the Department of Mechanical Engineering at Tsinghua University has proposed a ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...