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

Angular Velocity and static friction

  • Thread starter kitty9035
  • Start date
  • #1
17
0

Homework Statement


The coefficient of static friction between the person and the wall is .61. The radius of the cylinder is 6.56 m. An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough that any person inside is held up against the wall when the loor drops away. What is the minimum angular velocity needed to keep the person from slipping downward?


Homework Equations





The Attempt at a Solution



I don't know how to solve this problem because of the coefficient of static friction. Please help
 

Answers and Replies

  • #2
arildno
Science Advisor
Homework Helper
Gold Member
Dearly Missed
9,970
131
Well, ask yourself:
1. What force provides the person with her centripetal acceleration?
2. Relative to the wall, is this force a normal force, or a tangential force?
3. What is the force opposing her weight, and that must balance this in order for her not to slip downwards?
 

Related Threads on Angular Velocity and static friction

Replies
6
Views
11K
  • Last Post
Replies
7
Views
1K
Replies
20
Views
36K
  • Last Post
Replies
9
Views
3K
  • Last Post
Replies
11
Views
2K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
7
Views
2K
  • Last Post
Replies
2
Views
6K
Top