Physicshard · Past Paper
If a body of mass 'm' is taken to a height 'h' equal to the radius of Earth 'R', the value of 'g' becomes:
Ag/2
Bg/4
Cg/9
DZero
✓ Correct Answer: B — g/4
g' = GM/(R+h)² = GM/(R+R)² = GM/(2R)² = GM/4R² = g/4.
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