A horizontal water pipe fitted with a 90° bend of 0.3 m diameter gives discharges 320 litres per second. If the pressure at the inlet and exit of the bend are 245 kPa and 235 kPa, respectively, then...

A horizontal water pipe fitted with a 90° bend of 0.3 m diameter gives discharges 320 litres per second. If the pressure at the inlet and exit of the bend are 245 kPa and 235 kPa, respectively, then determine the resultant force exerted on the bend.