Which of the following is independent of the choice of co-ordinate system
Which of the following is independent of the choice of co-ordinate system
- A
$\vec P + \vec Q + \vec R$
- B
$({P_x} + {Q_x} + {R_x})\hat i$
- C
${P_x}\hat i + {Q_y}\hat j + {R_z}\hat k$
- D
None of these
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When vector $\overrightarrow{ A }=2 \hat{ i }+3 \hat{ j }+2 \hat{ k }$ is subtracted from vector $\vec{B}$, it gives a vector equal to $2 \hat{j}$. Then the magnitude of vector $\vec{B}$ will be:
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