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If O is origin annd the position vector ...

If O is origin annd the position vector fo A is `4hati+5hatj`, then unit vector parallel to OA is

A

`(4)/(sqrt(41))hati`

B

`(5)/(sqrt(41))hati`

C

`(1)/(sqrt(41))(4hati+5hatj)`

D

`(1)/(sqrt(41))(4hati-5hatj)`

Text Solution

Verified by Experts

The correct Answer is:
C
Unit vector parallel to `OA=(4hati+5hatj)/(sqrt(16+15))=(1)/(sqrt(41))(4hati+5hatj)`
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