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JEEMAIN PAST PAPERS
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2009
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Q)
A particle has an initial velocity $3 \hat{i} + 4 \hat{j}$ and an acceleration of $0.4 \hat{i} + 0.3 \hat{j}$. Its speed after 10 s is
( A ) $8.5$ units
( B ) $10$ units
( C ) $7 \sqrt{2}$ units
( D ) $7$ units
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