Balloons with constant ascending velocity can be used

Last updated: 6/11/2023

Balloons with constant ascending velocity can be used investigate wind velocities at various heights The given graph of elevation angle against time was obtained by observing a such balloon The balloon was released at distance L 1 km from the point of observation and it seemed to be rising dir ectly upwards Knowing that wind velocity near the ground was zero find the balloon s height at time t 7 min after its start and wind velocity at this height Aa deg 60 40