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!

Revolutions Help!

  1. Apr 14, 2009 #1
    1. The problem statement, all variables and given/known data
    Sam drops his ring in the mall. It goes rolling away from him at a velocity of 3.0 m/s. It has a radius of 0.50cm. After rolling 1.0 m how many revolutions has it made?


    2. Relevant equations
    vcm= rw


    3. The attempt at a solution
    vcm
    3.0x 2 pi = 18.84
    0.50x 18.84= 9.42
     
  2. jcsd
  3. Apr 14, 2009 #2

    LowlyPion

    User Avatar
    Homework Helper

    Welcome to PF.

    How do you see the velocity affecting the number of revolutions?

    If the circumference is 2*.5*π ... or π cm, then isn't the number of revolutions the number of circumferences it has traversed? 100 cm / π cm ?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Revolutions Help!
  1. Volumes of revolution (Replies: 1)

  2. Volumes Of Revolution (Replies: 7)

  3. Determing Revolutions (Replies: 1)

Loading...