If there's one thing that you should learn from physics, it's that big things are not like small things.
. However, those things are quite complicated, and I like the explanation that focuses just on forces.) You can argue about the physics, but you can't argue with real life: Shorter sticks fall over faster than longer sticks.
Let's go back to the simple model with the single mass on the end of a massless stick. Remember that there are two forces acting on the top mass—the downward gravitational force and the force from the stick. When the stick is rotating slowly and mostly vertical, the force from the stick pushes away from the pivot point to keep the mass at a constant circular radius. That seems fine.
Of course, this wouldn't happen with a wooden stick, but that could easily be the case with a tall chimney made of bricks. It can also happen with Lego blocks that aren't even connected to a falling stick.
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