Question

Which of the following does not depends on the choice of the co-ordinate system

• A. $\overline{P}+\overline{Q}+\overline{R}$
• B. $(P_x+Q_x+R_x)\hat{i}$
• C. $P_x\hat{i}+Q_y\hat{j}+R_z\hat{k}$
• D. $P+Q$

Answer 1

The correct option is A $\overline{P}+\overline{Q}+\overline{R}$

option A

as a vector, its magnitude, and the angle between two vectors do not depend on the choice of the orientation of the coordinates axes.