One lovely day, a first-year just found a "perfectly good" sofa abandoned on a street corner. Not wanting to see this lovely furniture go to waste, the first-year proceeds to drag it back to his room. He pulls on the sofa forward and upward with a force of magnitude 305 N at an angle of 32.6 above the horizontal. The sofa has a mass ofm= 60 kg. The sofa slides across the pavement which has a coefficient of kinetic friction of _k=0.26. What is the magnitude of the kinetic friction force?