If A - B is a unit vector along x - axis and A -k- then what is B -A- -k-B- -k-C- -k-D- -k-

The correct option is A ĵ + k̂Unit vector along x axis = î So, A + B = î (î ĵ k̂) + B = î B = ĵ +k̂ ...

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Byju's Answer

Standard XII

Physics

Unit Vectors

If A + B is a...

Question

If $\to A + \to B$ is a unit vector along x - axis and $\to A =^i -^j -^k$ , then what is $\to B$ ?

^j +^k

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^j -^k

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^i +^j +^k

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^i +^j -^k

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Solution

The correct option is A $^j +^k$
Unit vector along $x$ -axis $=^i$
So, $\to A + \to B =^i$
$(^i -^j -^k) + \to B =^i$
$\to B =^j +^k$

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Similar questions

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If →A+→B is a unit vector along x - axis and →A=^i−^j−^k, then what is →B?

The correct option is A ^j+^kUnit vector along x-axis =^i So, →A+→B=^i (^i−^j−^k)+→B=^i →B=^j+^k

If $\to A + \to B$ is a unit vector along x - axis and $\to A =^i -^j -^k$ , then what is $\to B$ ?

The correct option is A $^j +^k$
Unit vector along $x$ -axis $=^i$
So, $\to A + \to B =^i$
$(^i -^j -^k) + \to B =^i$
$\to B =^j +^k$