2006-12-19 22:57:43 · 4 answers · asked by spencer 2 in Science & Mathematics ➔ Physics
ray2_moot's answer will work. Normally, since both the universal gravity constant and the mass of the Earth are constant, the two are multiliplied together to obtain a new constant called the geocentric gravitational constant. It's 3.986004418 x 10^14 m^3/sec^2.
(abhishek j gave your the formula for the FORCE of gravity as you move further away from the Earth. However, if you know that F=ma, then you can obtain the acceleration by dividing out the mass).
2006-12-20 00:50:01 · answer #1 · answered by Bob G 6 · 1⤊ 0⤋
g = G Me / d^2
where:
(g) the acceleration due to gravity
(G) gravitational constant 6.67 X 10^-11 Nm^2/kg^2
(Me) mass of the earth 5.94 X 10^24 kg
(d) is the distance from the center of the earth (re + h)
re: is the radius of the earth 6.36 X 10^6 m
h: height away from the earth
greetings
2006-12-20 07:09:30 · answer #2 · answered by ray2_moot 2 · 1⤊ 0⤋
It is G*M*m divided by (R+h) 2
Where G= gravitational constant
M=mass of the earth
m=mass of the object
R=radius of the earth
H=height of the object
2006-12-20 07:10:07 · answer #3 · answered by abhishek j 1 · 1⤊ 0⤋
Its an inverse square rule. Ground level acceleration is based on the earth's radius, so always add in your starting distance to the altitude.
2006-12-20 07:06:24 · answer #4 · answered by SAN 5 · 0⤊ 0⤋