• anonymous
A helicopter is ascending vertically with a speed of 7 m/s. At a height of 139 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? and what will its speed be
  • Stacey Warren - Expert
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
  • chestercat
I got my questions answered at in under 10 minutes. Go to now for free help!
  • anonymous
when the package dropped, it has initial velocity upward. firs of all, you should find how much time need to be for stopping. You can use Vfin=vin + g*t After that, you should find how high it goes up by using Vfin^2 = Vin^2 + 2*g*y Then, the package is in free falling. Y=Vin*t + (gt^2)/2 you should find time t from here and add it that you find t first. For final speed you can use Vfin = Vin + g*t (where t is total time t )

Looking for something else?

Not the answer you are looking for? Search for more explanations.