FBD and what forces should I include?

  • Thread starter hahaha
  • Start date
  • #1
11
0
In the following situation, how should I draw a FBD and what forces should I include? A metal rod has a string coming out of one end. The other end of the string is attached to a small mass. The metal rod undergoes spinning action by the hand so that the string with the mass attached spins around the metal rod and is parallel to the ground. The metal rod is held in the hand perpendicular to the ground.
 

Answers and Replies

  • #2
dextercioby
Science Advisor
Homework Helper
Insights Author
13,001
550
Could you provide a drawing please...?And what is the problem asking...?

Does gravity play a role...?

Daniel.
 
  • #3
11
0
Basically the situation is, you are flinging a string with a mass at one end over your head. The strings flies around in circles kind of like a helicopter. My question is, what forces should I include in the FBD. I know there is centripetal force. There should be gravity pulling down, but what counteracts this force (a normal force?)
 
Last edited:
  • #4
dextercioby
Science Advisor
Homework Helper
Insights Author
13,001
550
Elastic force,centripetal force,gravity force,and tension in the rod...What other forces would be there...?

Daniel.
 
  • #5
11
0
I’m just looking for forces acting on the mass at the end of the string
 
  • #6
dextercioby
Science Advisor
Homework Helper
Insights Author
13,001
550
Elastic,gravity and centripetal.But it's difficult to predict which acts how,if you don't provide a drawing ...

Daniel.
 
  • #7
11
0
thanks, i'll try to get a drawing
 

Related Threads on FBD and what forces should I include?

  • Last Post
Replies
8
Views
1K
  • Last Post
Replies
1
Views
5K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
6
Views
2K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
3
Views
4K
Replies
8
Views
1K
  • Last Post
Replies
1
Views
2K
Replies
6
Views
2K
Top