Results 1 to 2 of 2

Thread: Differential Equations!!

  1. #1
    Nov 2007

    Differential Equations!!

    Suppose a particular jet needs to attain a speed of 220 mph to take off. If it can accelerate from 0 to 220 mph in 30 seconds, how long must the runway be? Assume constant acceleration. Note: 1 mph = 22/15 ft/sec.

    need help mainly with how to set this one up and i think from there i could figure out the rest, thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member Danshader's Avatar
    Mar 2008
    From now stop asking me where is malaysia...
    you are given:
    initial speed, u = 0
    final speed, v = 220
    acceleration = (v-u)/t ===> t= time taken for the plane to reach final velocity(in hours)

    then you use the formula:
    displacement, s = u.t + (1/2).a.t^2
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. 'Differential' in differential equations
    Posted in the Differential Equations Forum
    Replies: 0
    Last Post: Oct 5th 2010, 10:20 AM
  2. Replies: 2
    Last Post: May 18th 2009, 03:49 AM
  3. Differential Equations
    Posted in the Calculus Forum
    Replies: 1
    Last Post: Mar 12th 2009, 05:44 PM
  4. Replies: 5
    Last Post: Jul 16th 2007, 04:55 AM
  5. Replies: 3
    Last Post: Jul 9th 2007, 05:30 PM

Search Tags

/mathhelpforum @mathhelpforum