A ballon moves up vertically such that if a stone is thrown from it with a horizontal velocity V_(0) relative to it the stone always hits the ground at a fixed point (2V_(0)^(2))/(g) horizontally aways from it. The height of balloon as a function of time is y=(kV_(0)^(2))/(g) (1- e^((-g t)/(2V_(0)))). The value of 'k' is

A ballon moves up vertically such that if a stone is thrown from it wi

1.	A ballon moves up vertically such that if a stone is thrown from it with a horizontal velocity V_(0) relative to it the stone always hits the ground at a fixed point (2V_(0)^(2))/(g) horizontally aways from it. The height of balloon as a function of time is y=(kV_(0)^(2))/(g) (1- e^((-g t)/(2V_(0)))). The value of 'k' is
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