# Answer on Mechanics | Relativity Question for Nargis

Question #19363

A helicopter is ascending at rate of 12 m/s . At a height of 80 m above the ground ,a package is dropped .how long does the package take to reach the ground ?

Expert's answer

v0=12 m/s

H=-v0*t+gt^2/2

90=-12*t+4.6t^2

Solving this equation we get:t=5.916

H=-v0*t+gt^2/2

90=-12*t+4.6t^2

Solving this equation we get:t=5.916

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