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Pre-Calculus: Vectors Word Problems
Freda Pulliam and Yank Hardy are on opposite sides of a canal, pulling a barge with tow ropes. Freda exerts a force of 50 pounds at 20 degrees to the canal, and Yank pulls at an angle of 15 degrees with just enough force so that the resultant force vector is directly along the ...
A jet is flying through a wind that is blowing at a speed of 88km/h in the dirction N30*E. The jet has a speed of 1224km/h relative to the air, and the pilot heads the jet in th edirection N30*W.
(i) Express the velocity of the wind in terms of the unit vectors i and j.
(ii) Express the velocity of the jet relative to the air as a vector in terms of the unit vectors i and j.
(iii) Find the true velocity of the jet.
(iv) Find the true speed of the jet, correct to one decimal place.
(v) Find the true direction of the ...