(C)*60*************** (D)
(D) 90°******
A sail boat sails 3 km due east, 4 km 41° north
of east, and finally an unknown displacement.
If the final displacement of the boat from the
starting point is 12 km due west, determine the
third displacement. (Take cos 41° = 0.75.
sin 41° = 0.66)
(A) -18 -2.64
(B) 0.66î - 12)
(C)
-12
(D)
2.64 - 12
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