Scientific studies
posted by Aly .
A helicopter is ascending vertically with a speed of 5.20m/s. At a height of 125 m above the Earth, a package is dropped from a window. How much time does it take fo the package to reach the ground? [Hint: The package's initial speed equals the helicopter's}

Scientific studies 
Roselle
vi= 5.2 m/s
g= 9.8 m/s^2
d=125 m
t= ?
d= vit + gt^2/2
t=5.61s
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