Winds aloft usually much stronger than winds close to the ground. Therefore, in tracking a weather balloon you can not assume a constant speed form the time it left the ground. it is reasonable, however, to assume a constant speed and direction for 1 minutes to fly. at 10 minutes after launch the weather station radar indicates that the baloon is in a bearing of 240° from the station and the angle of elivation of 30° and a distance of 5.0 miles from the station. at 11 minutes after launch it was 5.6 miles away on a same bearing on a 25° angle of elevation. what is the speed of the balloon?
Winds aloft usually much stronger than winds clo?
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