Consider a completely full cylindrical water tank of height \( 1.6 \, \text{m} \) and of cross-sectional area \( 0.5 \, \text{m}^{2} \). It has a small hole in its side at a height \( 90 \, \text{cm} \) from the bottom. Assume, the cross-sectional area of the hole to be negligibly small as compared to that of the water tank. If a load \( 50 \, \text{kg} \) is applied at the top surface of the water in the tank then the velocity of the water coming out at the instant when the hole is opened is: \( (g = 10 \, \text{m}/\text{s}^{2}) \)
