A wind with speed 40 m/s blows parallel to the roof of a house. The area of the roof

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.

admin:

Related Questions

  1. A polished metal plate has a rough and black-spot. It is heated to 1400 K
  2. Magnetic induction produced at the centre of a circular loop carrying current is B.
  3. In n-type semiconductor, electrons are majority charge carriers
  4. The surface tension of a liquid is 5 newton per metre. If a film
  5. A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest