Re: Free fall

Luigi Fortunati il 21/03/2024 17:13:41 ha scritto:

What makes gravitational forces different from non-gravitational forces?
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Luigi Fortunati
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[[Mod. note -- That's a very good question!
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That is, the gravitationalforce on a body with inertial mass 2 kg is (a) precisely twice that on a body with inertial mass 1 kg, and (b) the *same* independent of the composition of the body.
-- jt]]

It is certainly true the (b) which makes gravitational forces different
from non-gravitational ones.

But (if I'm not mistaken) (a) also applies to the electromagnetic force
which, on a 2 gram body of any material X, is exactly double that on a 1
gram body of material X.

Is that so?

Luigi Fortunati