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A symmetrical stationary vane experiences a force F of 100 N as shown in the figure below, when the mass flow rate of water over the vane is 5 kg/s with a velocity ‘v’ of 20 m/s without friction.

                                           

The angle a of the vane is

(a) zero                        (b) 300

(c) 450                          (d) 600

 

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