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Answer on Mechanics | Relativity Question for ashley

Question #20883
A 29000 kg sailboat experiences an eastward force 20600 N due to the tide pushing its hull while the wind pushes the sails with a force of 87400 N directed toward the northwest (45 westward of North or 45 northward of West). What is the magnitude of the resultant acceleration of the sailboat?
Expert's answer
F1=20600 N
F2=87400 N
M=29000 kg
the angle between F1 and F2 is 135.
using the Law of cosines and the parallelogram law(rule):
a=Sqrt(F1^2+F2^2+2F1F2*cos(135))/M = 2.56m/s^2

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