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The component of vector A=2hati+3hatj al...

The component of vector `A=2hati+3hatj` along the vector `hati+hatj` is

A

`(5)/(sqrt2)`

B

`10sqrt2`

C

`5sqrt2`

D

5

Text Solution

Verified by Experts

The correct Answer is:
A
Component of A along B
`=A cos theta`
`= (A.B) /(B) = (2+3)/(sqrt(1+1)) = (5)/(sqrt2).`
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