A body started moving with an initial velocity of \(4\) m/s along the east and an acceleration \(1\) m/s2 along the north. The velocity of the body just after \(4\) s will be?

1. \(8\) m/s along East.
2. \(4 \sqrt{2} \) m/s along North-East.
3. \(8\) m/s along North.
4. \(4 \sqrt{2} \) m/s along South-East.
Subtopic:  Uniformly Accelerated Motion |
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A particle starts moving with constant acceleration with initial velocity (\(\hat{\mathrm{i}}+5\hat{\mathrm{j}}\)) m/s. After \(4\) seconds, its velocity becomes (\(3\hat{\mathrm{i}}-2\hat{\mathrm{j}}\)) m/s. The magnitude of its displacement in 4 seconds is:
1. \(5\) m
2. \(10\) m
3. \(15\) m
4. \(20\) m

Subtopic:  Uniformly Accelerated Motion |
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