A fan uses a rotating blade to moves 2m3 of air each second at a speed of 3 m/s. Assumes air is initially at rest and has a density of 1 kg/m3. Fans are inefficient; assume an efficiency of 10%.
What is the acceleration of the air? m/s2
What is the mass of the air? kg
What is the force the fan applies? N
What is the power output of the fan? W
What is the power input of the fan? W
Answers: 1
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A fan uses a rotating blade to moves 2m3 of air each second at a speed of 3 m/s. Assumes air is init...
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