Question

The drawing shows a boat being pulled by two locomotives through a canal of length 2.50 km. The tension in each cable is 5.00 103 N, and è = 19.0°. What is the net work done on the boat by the two locomotives?

Answer 1

work= force * distance cosine Theta
= 2*5000*2500*cos19/2

I assume the angle between the ropes is 19deg.