Solving Unknowns for 10 N Force and 3.0 kg Box

AI Thread Summary
To solve for the unknowns in the problem involving a 3.0 kg box with forces acting on it, start by analyzing the free body diagram. The net force (Fnet) can be calculated by subtracting the force pushing to the left (10 N) from the force pushing to the right (F1). Once Fnet is determined, apply Newton's second law (F = ma) to find the acceleration (a) of the box. It's important to ensure all forces are accounted for in the calculations. This approach will lead to the solution of the unknowns effectively.
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I'm having trouble finding the unknowns for this problem.

There is a picture of a box and m=3.0 kg

F1 is pushing to the right and 10 N is pushing to the left.

I have to find Fnet and a.

btw, It is free body diagram.
 
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can someone tell me the first step?
 
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