Kinematics Question 125
Question: If a particle moves from point P (2, 3, 5) to point Q (3,4,5). it’s displacement vector be
Options:
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} $
Correct Answer: 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} $
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Answer:
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