A closed rectangular tank is completely filled with water and is accelerated horizontally towards right. The pressure in the water is maximum at.............           

           

Due to acceleration towards right, there will be a pseudo force in a left direction. So the pressure will be more on rear side (Points A and B) Also due to height of liquid column pressure will be more at the bottom

$\therefore$ Maximum pressure will be at B.

Apply ${\text{P}}_{\text{c}}=0;{\text{P}}_{\text{0}}={\text{P}}_{\text{c}}+\rho \text{gh}$

${\text{P}}_{\text{A}}={\text{P}}_{\text{B}}-\rho \text{gh;}{\text{P}}_{\text{B}}={\text{P}}_{\text{D}}+\rho \text{aL}$

$\therefore {\text{P}}_{\text{B}}$  is maximum