If two vectors are equal and their resultant is also equal to one of t – InterviewSolution

1.	If two vectors are equal and their resultant is also equal to one of them, then the angle between the two vectors isA. `60^(@)`B. `120^(@)`C. `90^(@)`D. `0^(@)`
Answer» Correct Answer - B (b) We have ,`R=A=B` `:.R^(2)=R^(2)+R^(2)+2R Rcostheta` `"or "costheta=-(1)/(2)` `:.theta=120^(@)`

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