6–31. A uniform live load of 16 kN>m and a single concentrated live force of 34 kN are placed on the top beams. If the beams also support a uniform dead load of 3 kN>m, determine (a) the maximum positive shear in panel BC of the girder and (b) the maximum positive moment in the girder at C. Assume B is a roller and D is a pin.

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?