Two tugboats pull a disabled supertanker. each tug exerts a constant force of 2.20×106 n , one at an angle 19.0 ∘ west of north, and the other at an angle 19.0 ∘ east of north, as they pull the tanker a distance 0.720 km toward the north. what is the total work done by the two tugboats on the supertanker? express your answer in joules, to three significant figures.

Explanation:

According to the question

net force F = 2.20×10^6 N

displacement

from figure , the horizontal forces are same in magnitude and opposite direction.

so , neglect these two forces.

we can take only vertical components of the force.

total force F' = F cos 19° + F cos 19°

= 2×F×cos 19°   ................. (1

therefore , total work is

W = F'S

= (2F cos19)×S

50 inches should be the resultant vector

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