Math

posted by .

two helicopters flying at an altitude of 250 m are 2000m apart when they spot a life raft below. the raft is directly between the two helicopters. the angle of depression from one helicopter to the raft is 37 degrees. the angle of depression from the other helicopter is 49 degrees. both helicopters are flying 170 km/h. how long, to the nearest second, will it take the closer aircraft to reach the raft?

  • Math -

    Sin49 = h/d1 = 250m/d1.
    d1 = 250/Sin49 =331.3m = Distance of 1st helicopter.

    Sin37 = h/d2 = 250/d2
    d2 = 250/Sin37 = 415.4m = Distance of
    2nd helicopter.

    d1 = r*t, t = d1/r =0.3313km / 170km
    = 0.00195h = 0.00195h * 3600s/h =
    7 Seconds.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. PHYSICS NEED HELP FAST

    a raft is consttructed of wood having a density of 6000kg/m3. the surface area of the bottom of the raft is 5.7m2, and the volume of the raft is .60m3. when the raft is placed in fressh water having a density of 1000kg/m3, how deep …
  2. physics

    a raft is consttructed of wood having a density of 6000kg/m3. the surface area of the bottom of the raft is 5.7m2, and the volume of the raft is .60m3. when the raft is placed in fressh water having a density of 1000kg/m3, how deep …
  3. physics

    A woman on a bridge 77.4 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 7.07 m more to travel before passing under …
  4. Physics

    A woman on a bridge 75.0m high sees a raft floating at a constant sped on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 7.00m more to travel before passing under …
  5. physics

    A raft is constructed of wood havig a density of 600kg/m^3. The surface area of the bottom of the raft is 5.7m^2 and the volume of the raft is .60m^3. When the raft is placed in fresh water having a density of 1000kg/m^3, how deep …
  6. phys

    A woman on a bridge 84.7 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 8.02 m more to travel before passing under …
  7. physics

    A woman on a bridge 81.6 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 9.13 m more to travel before passing under …
  8. physics

    A woman on a bridge 81.6 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 9.13 m more to travel before passing under …
  9. Physics

    A woman on a bridge 91.1 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 8.20 m more to travel before passing under …
  10. physics

    A woman on a bridge 104 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 9.78 m more to travel before passing under …

More Similar Questions