An open rectangular box of base 2m × 2m contains a liquid of specific gravity 0.80 up to a height of 2.5m. If the box is imparted a vertically upward acceleration of 4.9 m/s2, what will the pressure on the base of the tank?
a. 9.81 kPa b. 19.62 kPa
c. 36.80 kPa d. 29.40 kPa