. when making a right turn, drivers a.  should slow down, then merge with the bicycle laneb.  should turn directly in front of the path of the bicyclistc.  should speed up to pass the bicyclist in their laned.  must wait until both sides of the road are clear of cyclists

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.