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What vector must be added to the sum of ...

What vector must be added to the sum of two vectors `2 hati - hat j + 3 hat k` and `3 hati -2 hat j - 2 hat k` so that the resultant is a unit vector along Z axis

A

`5 hati + hat k`

B

`-5 hati + 3 hat j`

C

`3 hat j + 5 hat k`

D

`-3 hat j + 2 hat k`

Text Solution

Verified by Experts

The correct Answer is:
B
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  19. Given vecA=(2hati-hatj+3hatk) and vecB=3hati-3hatj-2hatk find the unit...

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