Free Fall

  • #1
Normally in a free fall , there will be gravity acting to your body but when we free fall , we dont really feel the force , we feel weightless ( ignoring air resistance ) , ( not in contact with anything). Why?
 

Answers and Replies

  • #3
PhanthomJay
Science Advisor
Homework Helper
Gold Member
7,164
507
Normally in a free fall , there will be gravity acting to your body but when we free fall , we dont really feel the force , we feel weightless ( ignoring air resistance ) , ( not in contact with anything). Why?
in free fall, there are essentially no stresses or strains acting, so we don't feel anything even though the gravity force (weight force) is always acting. When standing on the ground, we feel the normal force ( contact force) causing internal stresses on the body. Remove that contact force and the stresses go away, and the body must now adjust to the lack of stress which make you 'feel' queasy like on a roller coaster drop . In that sense, we sort of do feel gravity, at least during the period of adjustment (which astronauts adjust to I am told, I am not one).
 

Related Threads on Free Fall

  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
11
Views
2K
  • Last Post
Replies
10
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
12
Views
929
  • Last Post
Replies
19
Views
6K
  • Last Post
Replies
2
Views
11K
  • Last Post
2
Replies
31
Views
28K
  • Last Post
Replies
8
Views
2K
  • Last Post
2
Replies
25
Views
61K
Top