x Google × YAHOO! The Work Done in Puling a Supertanker ± The Work Done in Pilin

Question

x Google × YAHOO! The Work Done in Puling a Supertanker ± The Work Done in Piling a Supertanker Part A Two tugboats pul a desabled supertanker Each tag exerts a constant force of 1 50-10P N one atanargie 19 D-west of narth, and to ter atan 190°east of north, as they pu the tanker adistance 0860 km toward the north What in tho total work done by the two bugboats on the supertanker? Express your answer in joales, to three significant figures. Atmen, Give Up Review Part incorrect: Try Again; 3 attempts remaining Not quie Check throuyour calculations you may have made an

Explanation / Answer

Since the motion is toward north therefore we calculate the force toward north
on resolving the forces we get = 1.5*106*Cos19 = 1.418*106 N
Since both will have same magnitude therefore net force will be
twice
Hence total force = 2*1.418*106 = 2.836*106 N
Hence work done = 2.836*106*(0.860*103) = 2.439*109 J

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