12-106. The balloon A is ascending at the rate VA= 12 km/h and is being carried horizontally by the wind.at = 20 km/h. If a ballast bag is dropped from

the balloon at the instant h 50 m, determine the time needed for it to strike the ground. Assume that the bag was released from the balloon with the same velocity as the balloon.Also, with what speed does the bag strike the ground?