Water enters a two-armed lawn sprinkler along the vertical axis at a rate of 75 L/s, and leaves the sprinkler nozzles as 2-cm diameter jets at an angle of θ from the tangential direction, as shown in Fig. P6–92. The length of each sprinkler arm is 0.52 m. Disregarding any frictional effects, determine the rate of rotation ṅ of the sprinkler in rev/min for 

(a) θ = 0°, 

(b) θ = 30°, 

(c) θ = 60°.

FIGURE P6–92

Transcribed Image Text:

1 1 I 1 I r = 0.52 m