Qualification > Math
Add. math!! dude slvri/astar/aadi/sam nebody help..!!!!!
~~~~shreyapril~~~~:
A plane flies from an airport A to an airport B. The position vector of B relative to A is (1200i + 240j) km,
where i is a unit vector due east and j is a unit vector due north. Because of the constant wind which is
blowing, the flight takes 4 hours. The velocity in still air of the plane is (250i + 160j) kmh–1. Find the
speed of the wind and the bearing of the direction from which the wind is blowing.
this quesiotion has stuck me up!!!
help!!
ans is 112(app.)
at 333o acc. to ms
~~~~shreyapril~~~~:
help ios wat everyone needs
no one here is providing me wid that!!! :( :(
Ghost Of Highbury:
to find the speed = 1200i + 240j/4 = 300i+60j
250i + xi + 160j + yj = 300i + 160j
xi = 50i
yj = -100j
refer to the diagram
angle XON = 90 - XOZ
XOZ = tan-1 2 = 63.4
therefore XON = 26.6
the bearing wud be the reflex angle i.e 360-26.6 = 333.4
~~~~shreyapril~~~~:
cool
freaking answer!!
how do you manage it dyude???
Ghost Of Highbury:
--- Quote from: ~~~~shreycool~~~~ on October 31, 2009, 11:01:14 am ---cool
freaking answer!!
how do you manage it dyude???
--- End quote ---
read the add. math book and solve the papers.
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