- #1
Femme_physics
Gold Member
- 2,550
- 1
Homework Statement
At what distance "d", from point "A", the board with the person will slide whereas
http://img267.imageshack.us/img267/6139/skkkkkkk.jpg
Uploaded with ImageShack.us
Homework Equations
Weight of board = 50 [kg]
Weight of person = 100[kg]
Frictional coefficient between board and pit: Us = 0.4
c = 3[m] b = 4[m] a =10[m]
((The answer is d = 6.47 [m] ))
The Attempt at a Solution
I found all the unknowns, but I don't know how to answer the actual question. They're asking for the distance where the plank would slide with the person...can't see how I find that out...
http://img341.imageshack.us/img341/6096/zzzzaf.jpg
Uploaded with ImageShack.us
Last edited by a moderator: