A large tank has a horizontal bottom area of 0.50m2 and contains water to a depth of 0.80m. A circular hole of radius 1.0cm is opened in the bottom. What is the initial volumetric flow rate Q of water leaving the tank? (Take g=9.8ms−2.)
a) 4.9×10−3m3s−1
b) 3.1×10−4m3s−1
c) 1.2×10−3m3s−1
d) 8.8×10−4m3s−1