A model airfoil of chord 6 in. and span 30 in. is placed in a wind tunnel with an air flow of \(100 \mathrm{ft} / \mathrm{s}\) at \(70^{\circ} \mathrm{F}\). It is mounted on a cylindrical support rod \(1 \mathrm{in}\). in diameter and \(10 \mathrm{in}\). tall. Instruments at the base of the rod indicate a vertical force of \(10 \mathrm{lbf}\) and a horizontal force of \(1.5 \mathrm{lbf}\). Calculate the lift and drag coefficients of the airfoil.