1. The problem statement, all variables and given/known data I need to figure out how much force it would take to knock a can over. 2. Relevant equations As of now, I have no clue where to even start with this. 3. The attempt at a solution I was told by a friend that the way to solve it is by finding the difference between the value at equilibrium and the value when the can is just about to tip. Unfortunately, I have no idea how to do this.