A ballon rises from rest on the ground with acceleration g/8. A stone is dropped when ballon is at a height of 39.2m The taken by stone to reach ground is

A ballon rises from rest on the ground with acceleration g/8. A stone

1.	A ballon rises from rest on the ground with acceleration g/8. A stone is dropped when ballon is at a height of 39.2m The taken by stone to reach ground is
Answer» 2 sec 4 sec 6 sec 3 sec Answer :B