If a particle moves from point P (2,3,5) to point Q (3,4,5) . Its displacement vector be

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3-1.Vectors

easy

If a particle moves from point $P (2,3,5)$ to point $Q (3,4,5)$. Its displacement vector be

A

$\hat i + \hat j + 10\hat k$

B

$\hat i + \hat j + 5\hat k$

C

$\hat i + \hat j$

D

$2\hat i + 4\hat j + 6\hat k$

Solution

(c) Displacement vector $\overrightarrow {r\,} = \Delta x\hat i + \Delta y\hat j + \Delta z\hat k$

$ = (3 – 2)\hat i + (4 – 3)\hat j + (5 – 5)\hat k$$ = \hat i + \hat j$

Standard 11

Physics

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