Posted by **vicky** on Friday, July 8, 2011 at 5:26pm.

A helicopter is ascending vertically with a speed of 5.20 m/s. At a height of 120 m above the Earth, a package is dropped from a window.

How much time does it take for the package to reach the ground? [Hint: v_0 for the package equals the speed of the helicopter.]

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