Question Problem $3($Problem $7-16.$ from the textbook$)$:

A major roadway with a speed limit of $45m\frac{i}{h}$ has an intersection that has

no intersection control with a minor roadway at a right angle. A building is

located next to the intersection at a distance of $60ft$ from the center of the

near lane on the major roadway and $40ft$ from the center of the near lane on

the minor roadway. At what speed for the minor roadway is the intersection

safe? Grades are approximately level.