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A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof is 250 m². 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 (ρair=1.2 kg/m³)
Options
(a) 4.8×10⁵ N,upwards
(b) 2.4×10⁵ N,upwards
(c) 2.4×10⁵ N,downwards
(d) 4.8×10⁵ N,downwards
Correct Answer:
2.4×10⁵ N,upwards
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The magnifying power of the astronomical telescope for normal adjustment is 50.
- A round uniform body of radius R, mass M and moment of inertia I rolls down
- The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
- Number of spectral lines in hydrogen atom is
- In a double slit experiment, the two slits are 1mm apart and the screen is placed 1 m
Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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