If $v^{2} = u^{2} + 2 a s$ , then $u =$

v^{2} - 2 a s

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\pm \sqrt{2 a s - v^{2}}

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\pm \sqrt{v^{2} - 2 a s}

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\pm \sqrt{v^{2} + 2 a s}

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Solution

The correct option is D $\pm \sqrt{v^{2} - 2 a s}$
Given : $v^{2} = u^{2} + 2 a s$
$⟹$ $u^{2} = v^{2} - 2 a s$
Taking square root on both the sides we get
$u = \pm \sqrt{v^{2} - 2 a s}$
Hence, option C is correct.

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