An open water tank develops a small hole in its side at a depth of 5.0 m below the water surface. Calculate the speed of efflux.
Q1. An open water tank develops a small hole in its side at a depth of 5.0 m below the water surface. Calculate the speed of efflux.
Answer: 9.9 m/s
Explanation: According to Torricelli's theorem, speed equals sqrt(2gh). With g=9.8 and h=5, the calculation yields approximately 9.9 m/s. Option B is just g.