Posted by shwet on Monday, June 6, 2011 at 11:38pm.
the force f1 and f2 are acting on a body one force is double that of the other force and the resultant is equal to the greater force.then the angle between two forceis what. How?

physics (vector)  drwls, Tuesday, June 7, 2011 at 8:08am
Use the law of cosines, and solve for the cosine.

physics (vector)  Anonymous, Sunday, August 2, 2015 at 9:29pm
what is force

physics (vector)  Henry, Monday, December 28, 2015 at 9:19pm
F1 = F2*Cos A.
Replace F2 with 2F1:
F1 = 2F1*Cos A
Divide both sides by 2F1:
Cos A = 0.50.
A = 60o.
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