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Friction help

  1. Apr 7, 2008 #1
    Two blocks (m1 = 2.500 kg and m2 = 3.100 kg) slide down a rough 30.0 degree incline.
    µ1 = .2300 for the lighter block
    µ2 = .5100 for the heavier block
    a) Determine the acceleration of the pair.



    b) Calculate the force the lighter block exerts on the heavier one.

    there is a picture as an attachment (couldn't figure out how to just put it on).

    i think i have found the acceleration of the objects i got 1.6336 meter per second squared but i don't know how to find the force on the second object.

    I took the sum of the forces which included (m1)(gravity)(sin30)-friction on that object + (m2)(gravity)(sin30)- friction of that object) all over (m1 + m2). to get 1.6886
     

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    Last edited: Apr 7, 2008
  2. jcsd
  3. Apr 7, 2008 #2

    cepheid

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    what work have you done so far? We can help put you in the right direction, but we won't do all of your work for you
     
  4. Apr 7, 2008 #3
    i think i have found the acceleration of the objects i got 1.6336 meter per second squared but i don't know how to find the force on the second object.

    I took the sum of the forces which included (m1)(gravity)(sin30)-friction on that object + (m2)(gravity)(sin30)- friction of that object) all over (m1 + m2). to get 1.6886
     
    Last edited: Apr 7, 2008
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