Air in a 126 km/h wind strikes head on the face of a building 44 m wide by 75 m

Question

Air in a 126 km/h wind strikes head on the face of a building 44 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??

Air in a 126 km/h wind strikes head-on the face of a building 44 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. Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

apply Pressure = Force/area

Force = PA

Pressre P = 0.5 rh v^2

P = 0.5 * 1.3 * (126*5/18)^2

P = 796.25 Pa

so

Force F = 796.25 * 44*75

F = 2.62 e+6----------------<<<<<<<<<<<<<<<<<Answer

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.