Originally Posted by
Jeff Neese
He asked for the calculations, and I gave them to him.
No you didn't. The answers you gave are fairly meaningless, since they include neither your assumptions
nor most of the relevant calculations.
As it happens, the specific answer you offered (10.2J over ten seconds) is correct
if the added mass is placed at a diameter of 755mm. Which is kind of a strange assumption, as is your use of rotational velocity as an alias for speed at the opening of the problem.
There are a lot of ways to look things up.
Yes. And there are a lot of ways to fail to comprehend or meaningfully use the material that you look up.