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  1. M

    Inclined plane question

    So I was watching some of those physics videos posted in schoolwork board, and although he probably didn't make an error here, I don't think I understand it. Here's the pictues. I'll elaborate after it so you guys know what I'm talking about...
  2. M

    Work energy problem

    Homework Statement A 30.0 kg box sliding at 5.00 m/s on a rough surface is brought to rest by 20.0 N of friction. What distance does the box slide? Homework Equations KE = 1/2*m*(v^2-v^2) The Attempt at a Solution I know that the change in velocity is 5.00 m/s since it is going to...