Problem: A dockworker loading crates on a ship finds that a 21-kg crate, initially at rest on a horizontal surface, requires an 82-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 54 N is required to keep it moving with a constant speed.
Part I: Find the coefficients of static and kinetic friction between crate and floor?
I need help to find the coefficients of static and kinetic friction between crate and floor.