A truck of mass 7520 kg is traveling along a level road at an initial speed of 32.9 m/s and then slows to a final speed of 17.9 m/s. Find the total work done on the truck.
change in KE = work done
= (1/2) 7520 (32.9^2 - 17.9^2)
= (1/2) 7520 (32.9^2 - 17.9^2)