< Mentor Note -- thread moved to HH from the technical physics forums, so no HH Template is shown > A balloon going upwards with a velocity of 12 m/s, is at a height of 65m from the earth at any instant. Exactly at this instant a packet drops from it. How much time will the packet take in reaching the earth. Ans. as given in my school book is: 5sec. But my problem is that I am not able to understand how to solve it. It will be great if somebody would please help me out and provide me the procedure for solving it. Thankyou.