Answer
Work done = 3.2 $\times$ $10^{3}$ J
Work Step by Step
Work done = $\Delta$$E_{k}$
= 0.5m$v^{2}$ - 0.5m$u^{2}$
= 0.5(70.3)($11.3^{2}$) - 0.5(70.3)($6.10^{2}$)
$\approx$ 3.2 $\times$ $10^{3}$ J
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