Am I supposed to use Newton's Second Law for this?

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The discussion revolves around applying Newton's Second Law, F = Ma, to a homework problem involving a tin of corned beef. The user has drawn a free body diagram but is unsure how to utilize it to find the net force and equate it to other forces acting on the object. They calculate the net force as 12.42 N but express confusion about the next steps in solving the problem. The user seeks guidance on converting free body diagrams into equations and highlights the challenges faced after missing a class. Understanding the application of free body diagrams is crucial for solving similar physics problems effectively.
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Homework Statement


dd0sc0.jpg



Homework Equations


F = Ma


The Attempt at a Solution


... I wish I even knew where to start :\
I drew the freebody diagram, but I don't know how to use it.
 
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I believe the net force acting on the tin of corned beef must be 2.3 Kg x 5.4 m / s2= 12.42 N. Set this equal to the other forces acting on the tin.
 
I don't even know how to do that :\ I kinda just need a similar problem solved so I can make a method out of how they did it... I need to figure out how to change free body diagrams into an equation. You miss one day of class and you get f-cked.
 

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