In: Physics
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.9×106 N, one an angle 10 ∘ west of north and the other an angle 10 ∘ east of north, as they pull the tanker a distance 0.87 km toward the north.
What is the total work they do on the supertanker?
Express your answer in joules.