The relation between time \( t \) and distance \( x \) is \( t=a x^{2}+\beta x \) where \( \alph...

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The relation between time \( t \) and distance \( x \) is \( t=a x^{2}+\beta x \) where \( \alpha \) and \( \beta \) are constants. The retardation is
\( \mathrm{V} \)
(1) \( 2 \alpha v^{3} \)
(2) \( 2 \beta v^{3} \)
(3) \( 2 \alpha \beta v^{3} \)
(4) \( 2 b^{2} v^{3} \)
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