• Support PF! Buy your school textbooks, materials and every day products Here!

Net force =0 or Net force =GM^2/4R^2....?

  • #1
Two stars of equal mass M move with constant speed V in a circular orbital of radius R about their common center of mass .What is the net force on each star?


the answer to this question was net force=GM^2/4R^2 .I want to ask that why net force not equal to zero although it is in translational equilibrium?

Any help in this regard would be appreciated....Thank You in anticipation
 

Answers and Replies

  • #2
PeroK
Science Advisor
Homework Helper
Insights Author
Gold Member
12,376
5,155
Two stars of equal mass M move with constant speed V in a circular orbital of radius R about their common center of mass .What is the net force on each star?


the answer to this question was net force=GM^2/4R^2 .I want to ask that why net force not equal to zero although it is in translational equilibrium?

Any help in this regard would be appreciated....Thank You in anticipation
If something is in a circular orbit, how can the force on it be 0? Newton's first/second laws apply.
 

Related Threads on Net force =0 or Net force =GM^2/4R^2....?

  • Last Post
Replies
10
Views
3K
Replies
13
Views
621
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
17
Views
2K
  • Last Post
Replies
7
Views
2K
  • Last Post
Replies
1
Views
10K
  • Last Post
Replies
8
Views
1K
  • Last Post
Replies
5
Views
1K
  • Last Post
Replies
1
Views
1K
Top