intro. to physics

posted by .

a helicopter is ascending vertically with a speed of 5.20 m/s. at a height of 100 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: v0 for the package equals the speed of the helicopter). thank you !

  • intro. to physics -

    h=v(o) •t +gt^2/2,
    g•t^2 +2•v(o) •t -2•h•= 0,
    9.8•t^2 +2•5.2 •t -2•100= 0,
    t = {-10.4 ±sqrt[(10.4)^2+4•9.8•200]}/2•9.8.
    t = 4.01 s

  • intro. to physics -

    h=v(o) •t +gt^2/2,
    g•t^2 +2•v(o) •t -2•h•= 0,
    9.8•t^2 +2•5.2 •t -2•100= 0,
    t = {-10.4 ±sqrt[(10.4)^2+4•9.8•200]}/2•9.8.
    t = 4.01 s

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A helicopter is ascending vertically with a speed of 3.00 m/s. At a height of 70 m above the Earth, a package is dropped from a window. How much time (in seconds) does it take for the package to reach the ground?
  2. Physics

    A helicopter is ascending vertically with a speed of 5.00 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?
  3. physics

    A helicopter is ascending vertically with a speed of 6.50 m/s. At a height of 55 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground?
  4. Physics

    A helicopter is ascending vertically with a speed of 4.50 m/s. At a height of 65 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground?
  5. physics

    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?
  6. physics

    a helicopter is ascending vertically with a speed of 5.20 m/s. at a height of 100 m above the Earth, a package is dropped from a window. how much time does it take for the package to reach the ground ?
  7. physics

    a helicopter is ascending vertically with a speed of 5.20 m/s. at a height of 110 m above the Earth, a package is dropped from a window. how much time does it take for the package to reach the ground ?
  8. physics please help !

    A helicopter is ascending vertically with a speed of 5.20m/s . At a height of 110m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground?
  9. physics

    A helicopter is ascending vertically with a speed of 4.50 m/s. At a height of 195 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground?
  10. Physics

    A helicopter is ascending vertically with a speed of 5.20 m/s. At a height of 125 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground?

More Similar Questions