Re: [Phys-L] [**External**] Cavendish
Not sure, but I believe this experiment first involves analyzing the torsional
pendulum. If you know the moment of inertia of the hanging apparatus, timing
the torsional oscillations lets you solve for the torsional spring constant. So
later, delta theta will tell you the torque and from there you can get the
force.
> On Feb 16, 2024, at 6:21 PM, Anthony Lapinski via Phys-l
> <phys-l@mail.phys-l.org> wrote:
>
> So I teach about universal gravitation and the Cavendish experiment.
> Problem is -- how is the force actually measured? The fiber twists a
> certain amount when the heavy masses are brought close to the hanging bar.
> A torque makes it twist a certain amount, but how does this translate to
> fiorce so that G could be measured?
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