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A body covers a distance \( s \) in \( t \) seconds with initial velocity \( v_{0} \) and uniform acceleration \( a \). Prove that: \( a=\frac{2 s-2 v_{0} t}{t^{2}} \).
[Hint: As \( s=v_{0} t+(1 / 2) a t^{2}, 2 s=2 v_{0} t+a t^{2} \quad \) or \( a t^{2}=2 s-2 v_{0} t \) or \( \left.a=\frac{2 s-2 v_{0} t}{t^{2}}\right] \)
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