Solving Friction Problem: 3.15 kg Block & 87.4 N Force

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To solve the problem of a 3.15 kg block being pushed with a force of 87.4 N at an angle of 58.9°, the coefficient of kinetic friction needs to be determined. The block accelerates at 5.49 m/s², indicating that the net force acting on it must be calculated using Newton's second law. Participants in the discussion emphasize the importance of drawing a free-body diagram to visualize all forces, including the normal force and friction. Clarification on how to incorporate the angle into the calculations is also sought. Ultimately, understanding the relationship between the applied force, friction, and acceleration is crucial for finding the coefficient of kinetic friction.
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Homework Statement


A 3.15 kg block is pushed along the ceiling with a constant applied force of F = 87.4 N that acts at an angle of alpha = 58.9° with the horizontal, as seen in the figure below.
http://aycu26.webshots.com/image/18345/2003241655315981977_rs.jpg
The block accelerates to the right at 5.49 m/s2. Determine the coefficient of kinetic friction between block and ceiling.



Homework Equations


Ff=uN


The Attempt at a Solution



Tried using the angle but don't know what to do.
Any ideas?
 
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So what did you use for N? You need to show more of what you did. Have you drawn a diagram with all of the forces on it? Remember Newton's second law.
 
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