- #1
lc99
- 161
- 3
Homework Statement
Homework Equations
The Attempt at a Solution
I've spent so long trying to solve this system of equations with my calculator that can do this for me. But, somehow , i still don't get it.The equations i got are:
1st diagram
Fc - Nb =0
Nc -0.3Nb -300=0
1.5*Nb-300x-0.5(0.3)Nb - 0.3Nb*x =0
second diagram
Nb-0.2Na=0
Na - 0.3Nb -180=0
M-Nb(1.5)-0.3Nb(1.5) =0
Assuming that Fa = 0.2Na and Fb = 0.3Nb because slipping will occur at A and B.
I've entered these into system of equations solver, and I keeping gett Fa = 1800/47 = 38.3
Fb =11.49
Nb = 38.3
I plugged Nb=38.3 for the last equation, and got M = 74.7 but the answer is wrong! I am beyond frustrated. :(