Question

When a falling meteoroid is at a distance above the Earth's surface of 3.20 times the Earth's radius, what is its acceleration due to the Earth's gravitational pull?

Answer 1

\[R=3.2R_E\]
\[g=G\frac{M_E}{(3.2R_E)^2}\]

Answer 2

RE = radius of the earth
ME = mass of teh erf

Answer 3

so the radius of the earth is supposed to be a known thing?

Answer 4

yes. Both the mass and radius of the earth are known quantities. It should be either in your text book or google it.