Question

Position of a particle in a rectangular-co-ordinate 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. $Noneofthese$

Answer 1

Answer: (B)

Step 1: Given

Position of particle = (3, 2, 5)

Step 2: Method used

If a point have coordinate (x,y,z) then its position vector = $x\hat{i}+y\hat{j}+z\hat{k}$

Step 3: Finding position vector

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

Hence, the position vector of points (3, 2, 5) is $3\hat{i}+2\hat{j}+5\hat{k}$.