Just a quick balanced torque puzzle. It’s really a test of whether or not one truly accepts the concept of center of mass.
Nothing exotic going on. The meterstick is uniform. Sufficient information is provided to solve the puzzle. It can be confounding to students.
Teeeeter Totr – HTML export | movie export
UPDATE: Among the many things I can count on in life is that virtually any mechanics demo I might share here has already been done better by the inimitable Dan Burns. For example:
