Water (p = 1000 kg/m3) flows through a venturi meter with an inlet diameter of 90 mm and a throat diameter of 50 mm. The inlet and throat gauge pressures are measured to be 800 kPa and 250 kPa, respectively. Assuming the venturi meter to be horizontal and neglecting friction, the difference between outlet and inlet velocity (in m/s) is (integer value).
Enter numerical value using the virtual keypad. Round off where necessary.