I came across a situation similar to the one in the picture shown below, where you have a water bottle that is being knocked over by accident. Naturally, I wondered how much I would have to fill a bottle with water to make sure it is the most resilient to being knocked over.
When I googled around I found this answer, but when I asked some engineers, they told me I would also have to take into account the inertia of the water.
Basically, I found two philosophies surrounding this problem:
- The fuller the bottle, the more mass it has and therefore the more inertia it has
- The lower the center of mass, the more likely the bottle is to tip back after being knocked over
I started thinking about the physics behind both philosophies, but I find it hard to figure out a way to compare both approaches. Does anyone have any tips to get me on the right track?
Please do let me know if you need more information.