October 10, 2015

Homework Help: Physics

Posted by Tii on Thursday, October 7, 2010 at 6:08pm.

This is my homework problem:
"The pilot of a plane is flying at 450 mi/hr W 20.0 degrees S relative to the earth. She sees another plane flying at 350 mi/hr N 40.0 degrees W relative to her plane. What was the magnitude and direction of the plane she saw relative to the earth?"

I'm not entirely sure where to start because relative motion is something I'm still trying to grasp. What do I start with to find the magnitude?

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