The glider A is being towed in level flight and is 400 ft behind and 100 ft below the tow...

The glider A is being towed in level flight and is 400 ft behind and 100 ft below the tow plane B. The tangent to the cable at the glider is horizontal. The cable weighs 0.5 lb per foot of length. Calculate the horizontal tension T0 in the cable at the glider. Neglect air resistance and compare your result with that obtained by approximating the cable shape by a parabola.