(III) Air in a 120-km/h wind strikes head-on the face of a
Chapter 7, Problem 13P(choose chapter or problem)
Problem 13P
(III) Air in a 120-km/h wind strikes head-on the face of a building 45 m wide by 75 m high and is brought to rest. If air has a mass of 1.3 kg per cubic meter, determine the average force of the wind on the building.
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