Prob. 1.4-19. A vertical force P= 10 kips acts downward

at the apex B of frame ABC, as shown in Fig. P1.4-19. The

frame is supported by a frictionless pin at C and rests on a

roller support at A. (a) Determine the reactions at A and

C, and (b) determine the internal resultants (axial force,

shear force, and bending moment) at arbitrary cross sections

of legs AB and BC, using the respective notations shown in

the two cutaways.

P=10 kips

P1.4-19 and P5.4-39

4 ft