1. Not finding help here? Sign up for a free 30min 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!

Which cylinder will reach the bottom of the plane first?

  1. Jul 26, 2006 #1
    Please check if my answer is reasonable. Any input is appreciated.

    Q. Given a hollow and a solid cylinder of equal masses that are placed on an inclined plane. Also, both cylinders have equal radii. Which cylinder will rewach the bottom of the plane first?

    I_hollow=MR^2 (fow negligible thickness cylinder)

    -I about an axis is used to describe how difficult it is to induce rotational motion. Higher I means higher resistance to rotational motion, and vice versa. Therefore, the solid cylinder reaches the bottome first.
  2. jcsd
  3. Jul 26, 2006 #2
    Seems like the solid one should reach the bottom first because it more easily rotates. Don't think you posted in the right section though.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?