A valuable antique chest, made in 1907 by Gustav Stickley, is to be moved into a truck. The weight of the chest is 1500 N. To get the chest from the ground onto the truck bed, which is 1.2 m higher, the movers push it up their 4.0-m-long ramp. Find the work done by the movers as they slide the chest up the ramp if the coefficient of friction between the chest and the ramp is 0.13.