1. The problem statement, all variables and given/known data[/b] A box weighing 100N is at rest on a horizontal surface. The coefficient of static friction between the box and the surface is 0.5, and the coefficient of kinetic friction is 0.25. If the crate is pushed with a force of 20N parallel to the floor, which of the following is true? 2. Relevant equations[/b] Force of Friction=μ(normal force) 3. The attempt at a solution[/b] The static friction force is μ(normal force) and normal F=100N. Static Ff=0.5(100N)=50N. And the box is pushed with less force than the max static Ff so "the crate will remain stationary, due to the static Ff of 50N which opposes the intended motion"... but I got it wrong. I don't know why. Help?