Can You Solve This Physics Homework Problem Due Monday?

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The user is seeking assistance with a physics homework problem due Monday, specifically focusing on question 3 related to kinetic friction and forces. They provided a link to an image of the problem and expressed urgency in receiving help. The user has attempted to apply the equation for friction but is stuck on the calculations involving forces. Additional context and attempts at solutions can be found in a linked forum post. Timely assistance is requested to complete the assignment before the deadline.
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Homework Statement



This is my home work..please help me 3-2-1 please..3 first, 2 second and then 1..Please help me..It is due on this Monday..I need you guys help.

http://img204.imageshack.us/img204/9661/photo0454t.jpg

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THANKS YOU GUYS

Homework Equations


here question 3:

Ff = fiction kinictic * N
Ff = .30cos30degree

F-mgSin30 degree-.30mgcos30 , ( I am stuck somewhere here )

The Attempt at a Solution

 
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