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Homework Help: Nice spring block

  1. Mar 14, 2010 #1
    1. The problem statement, all variables and given/known data

    A block A has mass =2kg and is attached to a spring of spring constant=40N/m .Another block of mass 4kg is pressed against A so that the spring is compresses by a distance 'd' .Then find the maximum value of 'd' for which on release of the B does not lose contact from the wall {friction coefficienT between the floor and the block=0.5].The block A is kept adjacent to the wall.




    2. Relevant equations

    Work-kinetic energy theorem

    3. The attempt at a solution
     
  2. jcsd
  3. Mar 14, 2010 #2

    tiny-tim

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    Hi antiparticle! :smile:

    I don't get it :redface: … if A is against the wall, where are the spring and B? :confused:
     
  4. Mar 14, 2010 #3
    On the left side of block A there is a wall on the right side of A there is a spring attached to A and the other end of the spring is attached to B.Now B is pushed against the wall so that the spring compresses.
    I think now it is more clear.
     
  5. Mar 14, 2010 #4

    tiny-tim

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    Just one thing still confusing me …

    "Then find the maximum value of 'd' for which on release of the B does not lose contact from the wall "

    … but B isn't in contact with the wall. :confused:
     
  6. Mar 14, 2010 #5
    I meant that A should not leave contact with the wall.

    Sorry for my english.
     
  7. Mar 14, 2010 #6

    tiny-tim

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    ah, that all makes sense now.

    ok, show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
     
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