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Two vectors a and b have magnitude 10 and 20 units.angle between them is 60°.what is the magnitude of resultant?

Two vectors a and b have magnitude 10 and 20 units.angle between them is 60°.what is the magnitude of resultant?

Grade:11

1 Answers

Aman gohel
71 Points
6 years ago
A=10units,B=20units=>Resultant(R)=√(A^2+B^2+2ABcosX)[According to triangle`s law of vector addition]=>R=√(100+400+400cos60°)=>R=√(100+400+200)=>R=√700=26.45units(Ans)

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