Question

what does $6\hat{i}$ signifies

• A. $6$ unit is $x$ direction
• B. $6$ unit is $y$ direction
• C. $6$ unit is $z$ direction
• D. $6$ unit is $x,y$ and $z$ direction

Answer 1

The correct option is A $6$ unit is $x$ direction

As $\hat{i}$ is unit vector in $x$ dirction so $6\hat{i}$ means $6$ unit in $x$ direction.