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< 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.

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.

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