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A body starts with a velocity ( $2 \hat{i} + 3 \hat{j} + 11 \hat{k}$ )m/ s and moves with an acceleration ( $5 \hat{i} + 5 \hat{j} - 5 \hat{k}$ )m/ s² . What is its velocity after 0.2 sec?

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$3 \hat{i} + 4 \hat{j} + 10 \hat{k}$

$3 \hat{i} - 4 \hat{j} - 10 \hat{k}$

$7 \hat{i} + 8 \hat{j} + 6 \hat{k}$

$2 \hat{i} - 3 \hat{j} + 11 \hat{k}$

answer is D.

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Detailed Solution

$V = \hat{u} + \hat{a} \cdot t$

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