To ask an engineering question please visit our forum site at Eng-Tips.



Browse our archive of questions and answers below or to access our old forum database of over 10000 questions and answers please visit the old Ask@ forum.

SCIENCE PUZZLE :: Magnet Race ??
Last Post 17 May 2012 10:46 PM by amitshinde00. 1 Replies.
AddThis - Bookmarking and Sharing Button Printer Friendly
  •  
  •  
  •  
  •  
  •  
Sort:
PrevPrev NextNext
You are not authorized to post a reply.
Author Messages
raj
Basic Member
Basic Member
Posts:167

--
17 May 2012 05:28 AM
    Fred and Bob are racing cylindrical magnets down tubes of various materials. All of the magnets weigh the same and have the same dimensions. All of the tubes are the same length and have an inner diameter just larger than the outer diameter of the magnets. There is negligible friction when the magnets travel through the tubes.

    Since they don't want the magnets to get stuck, Fred and Bob are using non-ferrous materials that magnets won't stick to. They have one tube for each material: wood, glass, aluminum, and plastic. Each of the tubes is set up at the same angle with respect to the floor and they are all in the same room on Earth.

    Assuming they have a perfect method of timing each run, which tube has the longest time?
    amitshinde00
    New Member
    New Member
    Posts:2

    --
    17 May 2012 10:46 PM
    all will move the same distance
    You are not authorized to post a reply.