Mastering physics :pulleys and friction

[madah12]

Homework Statement

http://img7.imageshack.us/img7/8717/friction.png

Homework Equations

The Attempt at a Solution

T-W_a=0
W=mg=-186.6
T=186.6
T-Q-fs=0
186.6-Q-fs

fs=uN
N=60+147=207
fs=82.8
186.6-Q-82.8=0
Q=103.8
what is wrong??

 

[Doc Al]

Note: They want the maximum value of Q.

 

[madah12]

wait so should I take the direction of friction to the right? 82.8+186.2=269 .. but that also isn't in the choice list

Edit: wait I have things to two significant figures right? so is 270 the right answer?

 

[Doc Al]

wait so should I take the direction of friction to the right? 82.8+186.2=269 .. but that also isn't in the choice list

Edit: wait I have things to two significant figures right? so is 270 the right answer?

Yes.