A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof is$$250{{m}^{2}}$$. Assuming that the pressure inside the house is atmospheric pressure, the force exerted by the wind on the roof and the direction of the force will be($${{\rho }_{air}}=1.2kg/{{m}^{3}}$$)

Question

TuteeHUB · Accepted Answer

$$2.4\times {{10}^{5}}N,downwards$$

TuteeHUB · Answer

$$4.8\times {{10}^{5}}N,upwards$$

TuteeHUB · Answer

$$2.4\times {{10}^{5}}N,upwards$$

TuteeHUB · Answer

$$4.8\times {{10}^{5}}N,downwards$$

1.	A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof is\[250{{m}^{2}}\]. Assuming that the pressure inside the house is atmospheric pressure, the force exerted by the wind on the roof and the direction of the force will be(\[{{\rho }_{air}}=1.2kg/{{m}^{3}}\])
A.	\[4.8\times {{10}^{5}}N,upwards\]
B.	\[2.4\times {{10}^{5}}N,upwards\]
C.	\[2.4\times {{10}^{5}}N,downwards\]
D.	\[4.8\times {{10}^{5}}N,downwards\]
Answer» C. \[2.4\times {{10}^{5}}N,downwards\]

A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof is\[250{{m}^{2}}\]. Assuming that the pressure inside the house is atmospheric pressure, the force exerted by the wind on the roof and the direction of the force will be(\[{{\rho }_{air}}=1.2kg/{{m}^{3}}\])

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