3. The students built a small airplane with a rectangular wing having a span of b=1.5 m and a chord of 0.4 m. They designed it to fly at a

speed of 60 km/hr, and the wing is at an angle of a = 1 deg relative to the free stream. If the zero lift angle a = -5 deg then calculate the lift coefficient (assume p = 1.2 kg/ m).%3DAlso, calculate the weight of the airplane.