physics

posted by .

A small mailbag is released from a helicopter that is rising steadily at 2 m/sec. a) how long does it take the mailbag to stop moving? b) how high will the mailbag have risen in the time found in part a? c) how far did the helicopter move in the time found in part a?

  • physics -

    The mailbag moves upwards with the initial velocity v0=2 m/s.
    Its motion is decelerated
    h = v0t - (gt^2)/2
    v = v0 - gt.
    If v=0, v0=gt and t = v0/g = 2/9.8=0.2 s.
    h = 2•0.2-(9.8•0.04)/2 = 0.204 m
    Helicopter moves uniformly, therefore,
    H = vt = 2•0.2 = 0.4 m.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A small mailbag is releassed from a helicopter that is ascending steadily at 5m/s. After 2s. a) what is the speed of the mailbag?
  2. Physics

    A small mailbag is released from a helicopter that is descending steadily at 2.87 m/s. a)After 5.00 s, what is the speed of the mailbag?
  3. physics

    A small mailbag is released from a helicopter that is descending steadily at 3.00 m/s. (a) After 2.00 s, what is the speed of the mailbag?
  4. physics

    A small mailbag is released from a helicopter that is descending steadily at 3.00 m/s. (a) After 2.00 s, what is the speed of the mailbag?
  5. physics

    The height of a helicopter above the ground is given by h = 2.55t3, where h is in meters and t is in seconds. At t = 1.60 s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ground?
  6. physics

    The height of a helicopter above the ground is given by h = 2.55t3, where h is in meters and t is in seconds. At t = 1.60 s, the helicopter releases a small mailbag. How long after its release does the mailbag reach the ground?
  7. physics

    A small mailbag is released from a helicopter that is descending steadily at 2.20 m/s. How far is it below the helicopter?
  8. physics

    A small mailbag is released from a helicopter that is descending steadily at 1.01 m/s. (a) After 4.00 s, what is the speed of the mailbag?
  9. Physics

    A small mailbag is released from a helicopter that is descending steadily at 2.36 m/s. (a) After 5.00 s, what is the speed of the mailbag?
  10. Physics

    (a) A small mail bag is released from a helicopter that is descending steadily at 2.13 m/s. After 4.38 s, what is the speed of the mail- bag?

More Similar Questions