Motion in a plane

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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 sec is

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Solution

$\bar v = \bar u + \bar a\,t$

$\Rightarrow \bar v = \left( {3\hat i + 4\hat j} \right) + \left( {0.4\hat i + 0.3\hat j} \right)10$

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Motion in a plane

Remember concepts with our Masterclasses.

A particle has an initial velocity 3i^+4j^ and an acceleration of 0.4i^+0.3j^. Its speed after 10 sec is

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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 sec is