A clerk moves a box of cans down an aisle by pulling on a strap attached to the box. The clerk pulls with a force of 181.0 N at an angle of 24.0? with the horizontal. The box has a mass of 31.0 kg, and the coefficient of kinetic friction between the box and floor is 0.530. The acceleration of gravity is 9.81 m/s2 . What is the acceleration of the box?