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The projection of a vector vec(r )=3hat(...

The projection of a vector `vec(r )=3hat(i)+hat(j)+2hat(k)` on the `x-y` plane has magnitude

A

`3`

B

`4`

C

`sqrt(14)`

D

`sqrt(10)`

Text Solution

Verified by Experts

The correct Answer is:
D
Projection on x-y plane `=sqrt(3^(2)+1^(2))=sqrt(10)`
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