A $5-$m$-$long, $4-$m$-$high tank contains $2\mathrm{.}5-$m$-$deep water when not in motion and is open to the atmosphere through a vent in the middle. The tank is now accelerated to the right on a level surface at $3\frac{m}{s^2}.$ Determine the maximum pressure in the tank relative to the atmospheric pressure.

$29\mathrm{.}5$ kPa

$24\mathrm{.}5$ kPa

$32\mathrm{.}1$ kPa

$35$ kPa