The kite of Prob. 5/169 is subjected to a change in wind conditions which requires the ten...

The kite of Prob. 5/169 is subjected to a change in wind conditions which requires the tension at B to have a value of 20 N to maintain equilibrium. If the unreeled length of kite string remains 120 m and the horizontal location of the kite from the child remains constant, determine the change in altitude for the kite. Compare your result with the printed answer for Prob. 5/169. Additionally, determine the tension in the string at A. Neglect aerodynamic drag on the kite string.

Problem. 5/169

In the position shown, aerodynamic forces hold the 600-g kite in equilibrium without the need for additional tension in the string attachment at B beyond the amount developed by the weight of the string itself. If 120 m of kite string have been unreeled, and the string is horizontal at A, determine the altitude h of the kite and the vertical lift and horizontal drag forces which act on the kite. The kite string has a mass of 5 g per meter of length. Neglect aerodynamic drag on the kite string.