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December 20, 2014

Homework Help: Ohysics

Posted by Joel on Sunday, September 19, 2010 at 8:16pm.

An airplane flying at 120km/h due west moves into a region where the wind is blowing at 40km/h due east. If the plane's original vecotr velocity is Vplane, what is the expression for the plane's resulting velocity in terms of Vplane.

a. 1/3 >Vplane
b. 2/3>Vplane
c.1 Vplane
d. 80Vplane

Please explain how to find this- I thought I took 120-40 = 80 but D doesn't seem like the right answer
Thanks

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