InterviewSolution
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InterviewSolution
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If `|vec(A)+vec(B)|=|vec(A)|=|vec(B)|` then the angle between `vec(A)` and `vec(B)`isA. `90^(@)`B. `120^(@)`C. `0^(@)`D. `60^(@)` |
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Answer» Correct Answer - C Resultant of two vector `vec(A)` and `vec(B)` can be given by `vec(R )= vec(A)+vec(B)` `|vec(R )|=vec(A)+vec(B)|= sqrt(A^(2)+B^(2)+2AB cos theta)` If `theta= 0^(@)` then `|vec(R )|=A+B= |vec(A)|+|vec(B)|` |
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