on the opposite bank of a river flowing at a speed as of 29 𝑚𝑠 −1 . A stone is dropped from it and it reaches the ground in 10 seconds. The height of the balloon when the stone was dropped from it is ( 𝑔 = 9.8 𝑚𝑠 −2 )

Question : on the opposite bank of a river flowing at a speed as of 29 𝑚𝑠 −1 . A stone is dropped from it and it reaches the ground in 10 seconds. The height of the balloon when the stone was dropped from it is ( 𝑔 = 9.8 𝑚𝑠 −2 )