- #1
Lazzini
- 15
- 2
If I build a tower - let's say, on the equator - and every so often, as the tower gets higher, I drop a stone from its top. Presumably, as I get fiurther away from the Earth's surface, each stone will accelerate towards ground at a lesser rate than one dropped when the tower was lower. How high will the tower need to be for a dropped stone to depart from Earth rather than be attracted to it, and what are the physics/mathematics behind the answer?