I forget. g=(re2/r2)g. inside or outside gravitational formula. KE=1/2MV2,transitional or rotational formula.?

Answer 1

I have no idea what you are doing with the first equation.

KE = 1/2 mv^2 is tranlational kinetic energy
KE = 1/2 I (omega)^2 is rotational kinetic energy

Answer 2

> g=(re2/r2)g

I'm guessing that this is supposed to be the formula for the acceleration due to gravity at a distance "r" from the earth's center, expressed as a function of "re" (earth's radius) and "g" (gravitational acceleration at the surface).

This formula works for r greater than or equal to re (that is, when "r" represents a point at or above the earth's surface). Is that what you mean by "inside or outside"?

BTW, it's confusing to use the same symbol "g" on both sides of that equation, since the "g" on the left is not the same as the "g" on the right. It's probably better to call the left-hand version g′ (g-prime) or something.