Question
Fri September 27, 2013 By: Rohan Astik

resultant of two vectors P and Q is perpendicular to vector P and its magnitude is half that of vector Q..what is angle between P and Q?

Expert Reply
Fri September 27, 2013

let angle p^q=90+a

we get sina=1/2

so, a=30

so angle is 120.

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