1. The problem statement, all variables and given/known data You exert a constant horizontal force on a large box. As a result the box moves across a horizontal floor at a constant speed v0. If you double the constant horizontal force on the box, how would the box then move? 2. Relevant equations F = ma = m dv/dt 3. The attempt at a solution Well, this question is a tad confusing to me, if the box is moving at a constant speed v0 then I have to assume that I would just push the box for an instant & then get it to move at a constant v0. If I were to double the force, then I would think that the speed would then be 2v0, however this is not the case... (dv/dt is proportional to F) Can anyone explain how to determine the motion?