Bubba sets a big box on the loft of his barn. The box consists of a mass of 32.4 kilograms. A rope runs from the box over a pulley to the hanger which Bubba begins to pile things on. If the hanging mass reaches 12.7 kilograms, the box begins to slide. Determine the coefficient of static friction among the box and the loft?
When the coefficient of kinetic friction is 20 percent less than the coefficient of static friction, then what would be the acceleration of the box once it starts to move.