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Wedge Problem

  • Thread starter mike41
  • Start date
  • #1
19
0

Homework Statement



Determine the force P required to like the 200kg crate. Coeff. Static friciton is 0.3 on ALL contact of surfaces. Neglect Wedge Mass

Prob.8-66.jpg


Homework Equations



μS x Fn = Fk
Summation of forces eqns

The Attempt at a Solution



im getting more unknowns than equations
see attachment.
 

Attachments

Answers and Replies

  • #2
Delphi51
Homework Helper
3,407
10
You should be able to get the friction force due to the B wedge moving on the crate surface quite easily. Do that first!
For the next surface down, can you find the normal force? Both the weight of the crate and the P force contribute to it.
 
  • #3
19
0
haha ofund it actually. muFN = Fk so uu only have 2 variables. gah well thanks anyways
 

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