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: How to Solve for atan when an object turns 60 degrees

  1. Nov 1, 2012 #1
    The problem statement, all variables and given/known data

    A flywheel with a radius of 0.200 starts from rest and accelerates with a constant angular acceleration of 0.900 .

    atan= .180 m/s2 when its at rest
    arad= 0m/s2 when at rest
    compute magnitude of resultant acceleration at the start a= .180 m/s2

    I got all of these already now the question is

    Compute the magnitude of the tangential acceleration of a point on its rim after it has turned through 60.0?

    atan= ? m/s2

    The attempt at a solution

    I do not know how to answer this. I honeslty dont know where to start.

    I know atan= [itex]\alpha[/itex]*radius but i dont know what to do now that the flywheel is turning 60
  2. jcsd
  3. Nov 1, 2012 #2
    Solved it.

    Turned out that i didnt need to worry about how far it moved so it was just Alpha*radius

    Giving me atan=.180m/s^2
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook