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Help in Friction

  1. Mar 23, 2005 #1
    A block with mass M1 is placed on an inclined plane with slope angle alpha and is connected to a second hanging block that has mass M2 by a cord passing over a small, frictionless pulley. The coefficient of static friction is (mu_s) and the coefficient of kinetic friction is (mu_k).

    A)Find the mass M2 for which block M1 moves up the plane at constant speed once it has been set in motion.

    B)Find the mass M2 for which block M1 moves down the plane at constant speed once it has been set in motion.

    C)Find the smallest value of M2 when the blocks will remain at rest if they are released from rest.

    Thank you guys~
     

    Attached Files:

  2. jcsd
  3. Mar 23, 2005 #2
    tell us what the problem is? Draw out a free body diagram of the situation and look at the forces. I cant help you if you dont tell me what it is you dont understand about the question.

    Regards,

    Nenad
     
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