Asmall crack occurs at the base of a 15.0-m-high dam. the effective area through which water leaves is 2.30 × 10-3 m2. (a) ignoring viscous losses, what is the speed of water flowing through the crack? (b) how many cubic meters per second of water leave the dam?

Answer

given,                                              

height of the dam = 15 m            

effective area of water = 2.3 x 10⁻³ m²

Using energy conservation              

           v = 17.15 m/s            

 discharge of water

      Q = A V                            

      Q = 2.3 x 10⁻³ x 17.15    

      Q = 0.039 m³/s