666.
Determine the horizontal and vertical components of force
that the pins at A. Band C exert on their connecting members.
SOLUTION
C, 12MB 0; 800(1 : 0.05) : 2140.2) = 0
A. : 4200 N : 4.20 kN Ans. M A an.
A:
:3 2F. = 0 B. : 4200 N : 4.20 kN

*672.
Determine the horizontal and vertical components of force 2 kN 2 W 2 kN 2 kN
at pins 24.3. and Cand the reactions at the fixed support D
of the threemember frame.
SOLUTION
Free Body Diagram: The solution for this problem will be simplified if one re

62.
Determine the force on each member of the truss and state
if the members are in tension or compression. Set
P1 : 500 lb and P2 : 100 lb.
SOLUTION
Method of Joints: In this case. the support reactions are not required for
determining the member forces.

627.
Determine the force in members HG. HE. and DE of the
truss. and state if the [nembels are in tension or compression.
SOLUTION
Method of Sections: The forces in members HG. HE. and DE are exposed by
cutting the truss into two portions through section