Question

Position of a particle in a rectangular coordinate system is $(3,2,5)$. Then, its position vector will be

• A. $3\hat{i}+5\hat{j}+2\hat{k}$
• B. $3\hat{i}+2\hat{j}+5\hat{k}$
• C. $5\hat{i}+3\hat{j}+2\hat{k}$
• D. None of these

Answer 1

The correct option is B

$3\hat{i}+2\hat{j}+5\hat{k}$

Explanation for the correct option:
Assigning the coefficient to the Coordinates.
A point $(3,2,5)$ is given.
Assign the $x$ coordinate $\hat{i}$ vector, $y$ coordinate $\hat{j}$ vector and $z$ coordinate $\hat{k}$ vector.

So, the position vector for the point $(3,2,5)$ is $3\hat{i}+2\hat{j}+5\hat{k}$.

Hence, the correct answer option (B)