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? [Hint: The package's initial speed equals the helicopter's.]

  1. 👍 0
  2. 👎 0
  3. 👁 172
  1. hf=0=hi+vi*t+1/2 g t^2

    solve this squadratic equation for t
    hi=195
    g=-9.8
    vi=4.50

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A helicopter is ascending vertically with a speed of 5.20 m/s. AT the height of 125m above the earth, a package is dropped from a window.How much time does it take for the package to reach the ground. ****Note: Please show the

    asked by Bunty on September 15, 2007
  2. 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? v = m/s (b) How far is it below the helicopter? d = m (c) What are your answers to parts

    asked by roger on August 30, 2012
  3. physics

    A package is dropped at time t=0 from a helicopter S that is descending steadily at a speed vi. (a) What is the speed of the package in terms of vi, g, and t? (b) What vertical distance d is it from the helicopter in terms of g

    asked by Hamad on September 24, 2013
  4. 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? The acceleration of gravity is 9.8 m/s2 . (b) After the mailbag is dropped, the

    asked by Nina on October 26, 2014
  5. maths

    A man sees a helicopter in the air at an unknown height.The man is standing 28,7m from point directly below the helicopter and measures the angle of elevation to be 30 degree.Calculate the height of helicopter

    asked by masabatha on October 29, 2014
  1. Physics

    A helicopter is flying in a straight line over a level field at a constant speed of 21.7 m/s and at a constant altitude of 11.5 m. A package is ejected horizontally from the helicopter with an initial speed of 21.6 m/s relative to

    asked by Lindsay on November 4, 2007
  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? v_0 for the package equals

    asked by Cara on September 8, 2009
  3. physics

    A helicopter weighs 3920 newtons, caculated the force on it if it is ascending up at a rate of 2m/s squre ,what wil b force on helicopter if it is moving up with the constant speed of 4m/s .

    asked by sam on September 15, 2014
  4. Physics

    A helicopter is lifting off from the ground and is moving vertically upward. The graph shows its vertical velocity vy versus time. How high is the helicopter after 7 s have elapsed?

    asked by Lily on September 26, 2010
  5. math

    A town N is 340 km due west of town G and town K is west of town N. A helicopter Zebra left G for K at 9.00 a.m. Another helicopter Buffalo left N for K at 11.00 a.m. Helicopter Buffalo traveled at an average speed of 20 km/h

    asked by kudu on March 6, 2015
  6. Physics

    A gun is fired vertically into a 1.60 kg block of wood at rest directly above it. If the bullet has a mass of 21.0 g and a speed of 195 m/s, how high will the block rise into the air after the bullet becomes embedded in it?

    asked by Jeff on January 20, 2016

You can view more similar questions or ask a new question.