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Homework Help: Finding mass and acceleration? (deals with coefficient of static friction)

  1. Nov 17, 2008 #1
    1. The problem statement, all variables and given/known data
    A 27.5 kg block is connected to an empty 1.00 kg bucket by a cord running over a frictionless pulley (Fig. 4-57). The coefficient of static friction between the table and the block is 0.495 and the coefficient of kinetic friction between the table and the block is 0.320. Sand is gradually added to the bucket until the system just begins to move.
    here is the diagram:
    http://www.webassign.net/giancoli5/4_57a [Broken]
    (a) Calculate the mass of sand added to the bucket.
    (b) Calculate the acceleration of the system.



    2. Relevant equations
    w= mg
    Fnet =ma
    Ff = μFN




    3. The attempt at a solution
    Fnet=ma
     
    Last edited by a moderator: May 3, 2017
  2. jcsd
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