Question

Unit vector parallel to the resultant of vector `8hati` and `8hatj` will be
A. `(24hati+5hatj)//13`
B. `(12hati+5hatj)//13`
C. `(6hati+5hatj)//13`
D. None of therse

Answer 1

Correct Answer - D
(d) Resultant of two given vector will be
`sqrt((8)^(2)+(8)^(2))=8sqrt(2)`
`therefore `Uniot vector parallel to the given vecoterwill be
`(hati+hatj)/(sqrt(2))`