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November 29, 2014

November 29, 2014

Posted by **ringo** on Monday, October 8, 2012 at 1:41am.

a southward direction, however, the plane must be pointed fifteen degrees west of south. Ifthe

flight takes 1 00 min, what is the wind velocity?

- two dimensional kinematics -
**Steve**, Monday, October 8, 2012 at 10:10amif the wind speed is s, set up the x- and y-components of the vectors:

first, work with velocity vectors only.

1500km in 100 min = 900km/hr

so, using the law of cosines,

s^2 = 1000^2 + 900^2 - 2(100)(90)cos30°

s = 1340 km/hr

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