Force question

  • Thread starter nix
  • Start date
  • #1
nix
43
0
i dont understand this..the way the forces go:frown:
if someone could show me how to do it and the steps..that would be great:
The static friction coefficient btw a wall and a pic is 0.7 while the kinetic one is 0.3. By what force shoudl one push the 6kg pic against the wall so that it will not slide?What if he/she pushed the pic with a force making an angle of 30 degrees to the horizontal (both cases)[?]


thanx!
 

Answers and Replies

  • #2
Jonathan
365
0
If you draw a freebody diagram, you will find that for the picture to not slide,
U*F=m*g
must be true. To solve for F:
F=mg/U
m=6kg
g=9.8m/s^2
U=.7
So F=84N
But I can't be sure because I don't know if I understand what you mean and I don't know what you mean by the second part of the question.
 
  • #3
nix
43
0
thanx for the help
i think i can take it from here :smile:
 

Suggested for: Force question

  • Last Post
Replies
3
Views
47
  • Last Post
Replies
11
Views
593
  • Last Post
2
Replies
50
Views
1K
  • Last Post
Replies
6
Views
251
  • Last Post
Replies
18
Views
459
  • Last Post
Replies
5
Views
580
  • Last Post
4
Replies
128
Views
2K
Replies
22
Views
545
  • Last Post
Replies
7
Views
314
Replies
2
Views
169
Top