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!

Ratio of power

  1. Mar 14, 2015 #1
    1. The problem statement, all variables and given/known data
    Part C:
    http://imgur.com/mFlXGZs [Broken]

    2. Relevant equations
    Power = τω

    3. The attempt at a solution
    P1/P2 = τ1ω1/τ2ω2 = (T1/T2) * (ω1/ω2)
    T1/T2 is found in part B: r1/r2
    (ω1/ω2) = vr1/vr2 (velocities are the same) = (r1/r2)
    (r1/r2)*(r1/r2) = (r1)^2/(r2)^2

    The answer is 1.
     
    Last edited by a moderator: May 7, 2017
  2. jcsd
  3. Mar 14, 2015 #2

    TSny

    User Avatar
    Homework Helper
    Gold Member

    Check this. See part (A). (ω1/ω2) ≠ vr1/vr2
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Ratio of power
  1. Power\mass ratio (Replies: 6)

  2. Velocity Ratios (Replies: 3)

  3. Velocity Ratio (Replies: 19)

Loading...