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: Rolling down a ramp - find acceleration

  1. Apr 15, 2013 #1

    Here are the few equations i set up... which ultimately led to a wrong answer.
    (In my solution, subscripts A refers to the ramp, B refers to the rolling pipe)



    I have a feeling that the acceleration if pipe A isn't simply downwards at 30deg.
    Cos the ramp is rolling away, so the angle is relative to the ramp.

    But I have no idea how to set up the required equations to correct this.
    Any pointers?
  2. jcsd
  3. Apr 15, 2013 #2


    User Avatar
    Science Advisor
    Homework Helper

    hi serverxeon! :smile:
    relative accelerations are vectors (like relative velocities or relative positions), and so they add like vectors :wink:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted