SOLUTION: A small package is dropped from a hovering helicopter at an altitude of 490 m. Neglecting air resistance, how long does it take the package top reach the ground?

Question 627227: A small package is dropped from a hovering helicopter at an altitude of 490 m. Neglecting air resistance, how long does it take the package top reach the ground?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A small package is dropped from a hovering helicopter at an altitude of 490 m. Neglecting air resistance, how long does it take the package top reach the ground?
:
A falling object equation: h(t) = -4.9t^2 + 490
h(t) = 0 when it hits the ground
-4.9t^2 + 490 = 0
-4.9t^2 = -490
Divide both sides by -4.9, results:
t^2 = 100
t =
t = 10 secs to fall 490 meters
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