Extracted text: A portal frame shown in figure (not drawn to scalé) has a hinge support at joint P and a roller support at joint R. A point load of 50 kN is acting at joint R in the horizontal direction. The flexural rigidity. El, of each member is 106 kNm². Under the applied load, the horizontal displacement (in mm, round off to 1 decimal place) of joint R would be 5 m Q El El 10 m 50 kN