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!

Circular motion plane problem

  1. Nov 10, 2009 #1
    1. The problem statement, all variables and given/known data

    A pilot makes a turn of radius 50.0 meters at a speed of 26.0m/sec. How long will it take him to make a 90 degree turn?

    2. Relevant equations

    tangential acceleration = final velocity - initial velocity/time



    3. The attempt at a solution

    tangential acceleration = final velocity - 26/t
    stuck at this point...unable to find final velocity from here???
     
  2. jcsd
  3. Nov 10, 2009 #2

    ideasrule

    User Avatar
    Homework Helper

    You actually don't need that equation. How much distance does he have to cover to turn 90 degrees? How fast is he turning? (Hint: it's 26.0 m/s.) How much time does it take?
     
  4. Nov 10, 2009 #3

    rl.bhat

    User Avatar
    Homework Helper

    Since speed is constant, time = 1/4* 2πR/v.
     
  5. Nov 11, 2009 #4
    thanks...could u please explain how u got to that formula.
    the one I have in book is:

    T= 2[tex]\pi[/tex]r/v

    thanks
     
  6. Nov 11, 2009 #5
    That T= 2LaTeX Code: \\pi r/v is the time it needs to cover a full circle (360*)
    So whats the time to cover 1/4 360*?

    Thats time=T/4 = 1/4* 2πR/v.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Circular motion plane problem
Loading...