Find the coefficient of kinetic friction for a 10 kg box being dragged steadily across a surface with a force of 2.0 N. Find the coefficient of static friction for a box that slips loose and slides downhill when tilted on a ramp at 40 degrees. Suppose you are pulling on a 5 kg box on a surface of rough wood with a coefficient of kinetic friction of 0.3. You are pulling at a steady speed. What is the friction force? How hard are you pulling the string attached to the mass