Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.20×10^6N , one at an angle 17.0 degrees west of north, and the other at an angle 17.0degrees east of north, as they pull the tanker a distance 0.770km toward the north.
What is the total work done by the two tugboats on the supertanker? (answer in J)