A 20.0-kg crate is initially moving on the floor at 1.00 m/s, when you push it with 145 N for 1.55 m, then you let go of it. The crate slides for another 0.805 m, then it completely stops. Neglect air drag, for simplicity. Find the coefficient of kinetic friction between the crate and the floor, whose roughness we are assuming to be uniform.