Oil must be mined from underground.
The chair and floor have a static friction coefficient of 7.9523 and a kinetic friction coefficient of 0.8114, respectively.
<h3>What causes static friction?</h3>
The braking force of an item is static friction. The resistance humans encounter when attempting to move something fastened to the ground without actually moving thier own bodies or the surface that are sitting on is described as static friction.
<h3>What causes static friction to form?</h3>
Adhesion, a slight chemical attraction between contact objects, is what causes static friction. Friction is also produced by the interaction of the flaws on each surface.
To know more about static friction visit:
brainly.com/question/13754413
#SPJ13
