volume_mute
Suppose you weigh 117 here on earth
publish date: 2024/03/24 19:38:26.227594 UTC
volume_muteHow far from the center of the earth must you go to weigh 13 pounds?
Note: You distance to the center of the earth is about 4000 miles when you are on the surface
Correct Answer
12000
Explanation
The ratio of the forces is \(\frac{13}{117}\) or \(\frac19\). To decrease the force to \(\frac19\), you must be 3 times as far away.
Reference
Basic Physics: A Self-Teaching Guide