A 90--nozzle with exit diameter d is attached to a hose of

Question

A 90--nozzle with exit diameter d is attached to a hose of diameter 3d with pressure p. The nozzle changes the direction of the water flow from the hose through an angle of 90-. Calculate the magnitude of the force of the water on the nozzle if

(a) p ¼ 200 kPa, d ¼ 1 cm

(b) p ¼ 400 kPa, d ¼ 6 mm

(c) p ¼ 300 kPa, d ¼ 1.2 cm (d ) p ¼ 500 kPa, d ¼ 2.2 cm