Timeline for If $F=ma$, how can we experience both gravity and a normal force even though we are not accelerating?
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| Apr 13, 2017 at 12:40 | history | edited | CommunityBot |
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| Jul 3, 2016 at 12:05 | comment | added | John Rennie | See How can you accelerate without moving? | |
| Jul 2, 2016 at 23:15 | comment | added | user32023 | I am wrestling with this question at the moment. Let's say, 'Fine', I accept your ludicrous GR notion that the acceleration depends on the observer. My free-falling observer claims that the guy standing on the cliff is accelerating at 9.8 m s-2 in a direction away from the center of the Earth. So when an objective observer measures both the falling observer and the static observed on the cliff, how come the distance for the observed object is static (i.e. the distance from the center of the Earth to the guy on the cliff doesn't change even though he's accelerating away from it)? | |
| Feb 5, 2014 at 7:30 | history | answered | John Rennie | CC BY-SA 3.0 |