1. The problem statement, all variables and given/known data A 6 kg object sits on a horizontal surface with coefficient of friction = .8. What is the minimum force (not necessarily horizontal) necessary to make the object slide? 2. Relevant equations Fsmax = u * Fn where Fsmax is the force that must be overcome to make an object move, u is the coefficient of friction, and Fn is the normal force. 3. The attempt at a solution I was just wondering if this seemed correct: Fg = -58.8 N (mass * g) so Fn = 58.8 N I'm not clear on when exactly one can make the assumption that Fg = Fn but then using that value of Fn I calculated Fsmax, so the minimum force necessary to make the block move is any force greater than Fsmax.