1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Terminal velocity for big objects

  1. Jan 30, 2009 #1
    1. The problem statement, all variables and given/known data

    The drag force on large objects such as cars, planes, and sky divers moving through air is more nearly Fdrag = -bv^2.

    For this quadratic dependence on v, determine a formula for the terminal velocity vTerm, of a vertically falling object.

    Express your answer in terms of the variables m, b, and appropriate constants.

    2. Relevant equations
    Vterm = mg/b

    3. The attempt at a solution

    No idea how to begin this question.
  2. jcsd
  3. Jan 30, 2009 #2
    At terminal velocity, the force of drag is equal to the gravitational force.

  4. Jan 30, 2009 #3
    'b' is a characteristic dimension, such as the distance from front to rear bumper for an automobile attempting to fly.

    You managed to leave out a square root in your equation.
  5. Jan 30, 2009 #4
    Which equation?
  6. Jan 30, 2009 #5


    User Avatar
    Gold Member

    From the one meta kindly put up
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook