Question: 6-42. The boat is powered by the fan, which develops a slipstream having a diameter of 1.25 m. If the fan ejects air with a

6-42. The boat is powered by the fan, which 6-42. The boat is powered by the fan, which develops a slipstream having a diameter of 1.25 m. If the fan ejects air with a velocity of 40 m/s, measured relative to the boat, and the boat is traveling with a velocity of 8 m/s, determine the force the fan exerts on the boat. Assume that the air has a constant density of p, = 1.22 kg/m? and that the air entering at A is essentially at rest relative to the ground. Problem 6-42

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