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!

Solid sphere and hollow sphere rolled down an inclined plane

  1. Oct 20, 2015 #1
    A solid sphere and a hollow one of same mass and radii are rolled down a rough inclined plane.
    Which of the following is true?
    (A) solid sphere reaches bottom with greater speed.
    (B) solid sphere reaches the bottom with greater kinetic energy.

    ( I know that option A is correct.Thus I felt that B should also be correct.
    However A is the only option given in the book as correct. Please help)
     
  2. jcsd
  3. Oct 20, 2015 #2
    Why do you think the kinetic energy of the solid sphere is greater? Because of its higher velocity? If this is the case, maybe another look at the statement helps: it says ' [...] are rolled down [...] '.
     
  4. Oct 20, 2015 #3

    JBA

    User Avatar

    See the above but even in that case V at the end = V initial + the acceleration due to gravity that is experienced by both balls; or, is there something else I am also missing?
     
    Last edited: Oct 20, 2015
  5. Oct 20, 2015 #4
    Please use the template so we can help you.
     
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: Solid sphere and hollow sphere rolled down an inclined plane
Loading...