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The unit vector along vec(A)= 2 hat i + ...

The unit vector along `vec(A)= 2 hat i + 3 hat j` is :

A

`2 hat i+ 3 hat j`

B

`(2i +3 j)/(2)`

C

`(2i + 3j)/(13)`

D

`(2i +3j)/(sqrt(13))`

Text Solution

Verified by Experts

The correct Answer is:
D
`vec(A)=2 hat(i)+3 hat(j)`
`hat(A)=(2i+3j)/(sqrt(4+9))=(2i+3j)/(sqrt(13))`.
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RESONANCE ENGLISH-DAILY PRACTICE PROBLEM-DPP No.3
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