Problem No$.2$

The following data were obtained from a laboratory permeability measurement test conducted on Dolese $($Type M$)$ aggregate base. Determine the permeability of the aggregate. Assume sample height as $4\mathrm{.}5$ in$.$

$\backslash$table$[[$Head$,$ h $($in$),$Time, dt $($sec$)],[27,-],[26,55\mathrm{.}65],[25,112\mathrm{.}83],[24,174\mathrm{.}36],[23,242\mathrm{.}37],[22,312\mathrm{.}08],[21,393\mathrm{.}24],[20,475\mathrm{.}21],[19,566\mathrm{.}68],[18,674\mathrm{.}83],[17,802\mathrm{.}55],[16,946\mathrm{.}18],[15,1109\mathrm{.}87],[14,1299\mathrm{.}4],[13,1504\mathrm{.}2],[12,1727\mathrm{.}83],[11,1989\mathrm{.}00],[10,2290\mathrm{.}00],[,]]$