A hole is made at the bottom of the tank filled with water (density\[\text{1000}\,\text{kg/}{{\text{m}}^{\text{3}}}\]). If the total pressure at the bottom of the tank is 3 atmosphere (1 atmosphere\[\text{=1}{{\text{0}}^{\text{5}}}\,\text{N/}{{\text{m}}^{\text{2}}}\]), then the velocity of efflux is