Question

What is the moment of inertia?

How do you calculate moment of inertia for a mass on a stick?
If a stick has no mass, but it is 3 meters long, and on each end is a 2kg mass, how much inertia does the mass have it if the axis of rotation is perpendicular through the center of the stick?
https://openstax.org/books/university-physics-volume-1/pages/10-5-calculating-moments-of-inertia
the link is supposed to be used for this but im confused so please help and i gotta fill up a whole page with notes except the calculus parts

Answer 1

stick is like a rod

So

`\\ \rm\Rrightarrow I=(ML^2)/(12)`

`\\ \rm\Rrightarrow I=(2(3)²)/(12)`

`\\ \rm\Rrightarrow I=(9)/(6)`

`\\ \rm\Rrightarrow I=(3)/(2)`

`\\ \rm\Rrightarrow I=1.5kgm^2`