Final answer:
The speed limit on the head-of-stand roadway between B and C piers is not specified; however, calculations of speed from one unit to another can be demonstrated through examples in the field of kinematics, a branch of physics.
Step-by-step explanation:
The speed limit on an interstate highway is not relevant to the question regarding tunnel ramps and the head-of-stand roadway between B and C piers, as such specific speed limits would be determined by local regulations or laws. For questions related to converting speeds from one unit to another, such as from kilometers per hour to meters per second or vice versa, certain calculations are used, which are directly related to the topic of kinematics in physics.
For example, to convert 80 km/h to meters per second, you divide by 3.6 (since 1 m/s is equivalent to 3.6 km/h). Therefore, 80 km/h is approximately 22.2 m/s and to convert kilometers per hour to miles per hour, you use the conversion factor that 1 km is approximately equal to 0.621371 miles, hence 80 km/h is approximately 49.7 mi/h.
If a car is traveling at a speed of 33 m/s, to find its speed in kilometers per hour you multiply by 3.6, which gives you 118.8 km/h. This means the car is exceeding a 90 km/h speed limit because 118.8 km/h is greater than 90 km/h.