Thermodynamics. Liquid water with density of 1000kg/m3 enter a rigid tank through an opening having a diameter 20mm.

Thermodynamics. Liquid water with density of 1000kg/m3 enter a rigid tank through an opening having a diameter 20mm. The velocity at the inlet is controlled so that it changes according to the following expression. V=a-ct^2, where a = 20m/s, c- 0.8m/s. If the tank initially contains 3kg of liquid water, determine the final mass at the end if 4 seconds of flow.