Spring and friction assignment

  • Thread starter kar_04
  • Start date
  • #1
3
0
another physics question..plz

Albertine sits ina reclining chair, in front of a large, compressed spring. The spring is compressed 5m from its equilibrium position, and a glass sits 19.8 m from her outstretched foot. Assuming that Albertine's mass is 60kg what is the coefficient of kinetic friction between the chair and the waxed floor?

U(kinetic) = F/N
N= 588
F=??
a=??
 

Answers and Replies

  • #2
Assuming that she just touches the glass, [tex]0.5kx^2=\mu mgx[/tex] where x is 19.8 m, but you dont know k (spring const) which is reqd.
 

Related Threads on Spring and friction assignment

  • Last Post
Replies
11
Views
688
  • Last Post
Replies
1
Views
3K
Replies
2
Views
769
  • Last Post
Replies
6
Views
4K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
6
Views
8K
Top