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: Average force on a airplane

  1. Sep 22, 2009 #1
    1. The problem statement, all variables and given/known data

    A 1150kg airplane starts from rest and accelerates forward for 7.3 seconds until it reaches its takeoff speed of 31m/s. What is the average force on the airplane during this time?

    I tried F= ma, but I get a number that is far too large.
    F= 1150kg times (31/7.3) = 4883.6N

    I tried on a similar problem with a similar weight and got an answer in the hundreds when the answer was simply 6N.

    Help please.
    Last edited: Sep 22, 2009
  2. jcsd
  3. Sep 23, 2009 #2


    User Avatar
    Homework Helper

    Your answer is correct.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook