A body has an initial velocity of 4 m/s and a deceleration of $4 m / s^{2}$ , then what is its final velocity after travelling 2m?

4 m/s

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0 m/s

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5.656 m/s

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2 m/s

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Solution

The correct option is B
0 m/s

$v^{2} = u^{2} - 2 a s$ $u = 4 \frac{m}{s}, a = 4 \frac{m}{s^{2}} a n d s = 2 m, S o, v = 0 \frac{m}{s}$

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A body has an initial velocity of 4 m/s and deceleration of 4 $m / s^{2}$ , then what is its final velocity after travelling 2m?

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