Imagine that you are riding in an elevator to the 18th floor of your building. The elevator accelerates upwards with a = 1.90m/s2. Next to you is a box containing your new computer; The box and its contents have a total mass of 28 kg. While the elevator is heated up, you push the box horizontally to slide it at constant speed toward the elevator door. If the coefficient of kinetic friction between the box and the elevator floor is μk = 0.32. What magnitude of force should be applied?