This is in reference to https://Phet.colorado.edu/en/simulation/forces-1d Applied force=1600N Cabinet mass is 200 kg Man is paused at

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This is in reference to https://Phet.colorado.edu/en/simulation/forces-1d Applied force=1600N Cabinet mass is 200 kg Man is paused at 3 m What is the total force? (I see total force in a broken lined box but don't know how to read that. What is its acceleration? Do I use applied or total force in the formula