Answer
$W$ = $3.92\times{10}^{6}$
Work Step by Step
volume of one layer of water is $32Δy$ $m^{3}$
force each layer is $(9.8)(1000)(32Δy)$ = $313600Δy$ $N$
$W$ = $\int_0^{5}(313600y)dy$
$W$ = $156800y^{2}|_0^5$
$W$ = $3.92\times{10}^{6}$
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