Circular motion of key swing

  • #1
Keys with a combined mass of 0.100 kg are attached to a 0.25m long string and swung in a circle in the vertical plane.
a) What is the slowest speed that the keys can swing and still maintain a circular path?
b) What is the tension in the string at the bottom of the circle?
 

Answers and Replies

  • #2
311
1
Show what you have done and where you are stuck.
 
  • #3
i don't know how to approach it like how to start the problem
 
  • #4
tiny-tim
Science Advisor
Homework Helper
25,832
251
start by writing out all the equations you know that might help :smile:

(if you don't know any, go back to your book or your lecture notes and find some)
 

Related Threads on Circular motion of key swing

  • Last Post
Replies
13
Views
2K
  • Last Post
Replies
3
Views
5K
  • Last Post
Replies
1
Views
8K
  • Last Post
Replies
9
Views
29K
Replies
9
Views
3K
Replies
7
Views
1K
Replies
24
Views
4K
Replies
5
Views
1K
Replies
1
Views
7K
Top