Question

2. The rectangular roof of a carport is 2 m wide and 6 m long and has an incidence angle of 5 deg. If a 20 m/sec wind blows, as

shown in the figure, then calculate the lift force on the roof. Approximate the lift coefficient by using the elliptic wing formula, and use p=1.2 kg/m.

Fig: 1

Fig: 2