Question Number 76556 by aliesam last updated on 28/Dec/19
Answered by benjo 1/2 santuyy last updated on 28/Dec/19
$${v}\:=\:\pi{R}^{\mathrm{2}} \:{h} \\ $$$${dv}/{dt}\:=\:{dv}/{dR}\:×\:{dR}/{dt} \\ $$$$=\:\mathrm{2}\pi{Rh}\:×\:{dR}/{dt} \\ $$$${dv}/{dt}\:{and}\:{dR}/{dt}\:=...? \\ $$