Chapter one
Introduction
1.10 Gravity on earth
F = mg
Where:
m is the mass of the body in question
g = 32.2 ft/s
2
or 9.81 m/s
2
From our gravity equation, we can see that:
g = GM/r
2
Where:
M is the mass of the earth
r is the radius of the earth
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Chapter one
Introduction