Unit vector in the direction of the resultant of vectors $$A=-3i^-2j^-3k^$$ and $$B=2i^+4j^+6k^$$

Correct option is 3-i^+2j^+3k^14

Questions

Unit vector in the direction of the resultant of vectors $A = - 3 \hat{i} - 2 \hat{j} - 3 \hat{k} and B = 2 \hat{i} + 4 \hat{j} + 6 \hat{k}$

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-3i^-2j^-3k^14

-i^+2j^+3k^

-i^+2j^+3k^14

-2i^-4j^+8k^

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detailed solution

Correct option is C

Resultant vector of A and B isR = A + B = -3i^-2j^-3k^+2i^+4j^+6k^ =-i^+2j^+3k^R=-12+22+32=1+4+9=14Unit vector in the direction of R isR^=RR=-i^+2j^+3k^14

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Unit vector in the direction of the resultant of vectors A=-3i^-2j^-3k^ and B=2i^+4j^+6k^

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

Unit vector in the direction of the resultant of vectors $A = - 3 \hat{i} - 2 \hat{j} - 3 \hat{k} and B = 2 \hat{i} + 4 \hat{j} + 6 \hat{k}$