Final answer:
The maximum legal speed limit on most interstate highways in Virginia is 70 mph, equivalent to about 112.65408 km/h or 31.2928 m/s.
Step-by-step explanation:
This converts to approximately 112.65408 kilometers per hour (km/h) or about 31.2928 meters per second (m/s). For reference, if the speed limit is 100 km/h, this is equivalent to about 62 miles per hour, because 1.0 mile is about 1.609 km. Therefore, the 100 km/h speed is somewhat higher than the maximum legal speed limit on interstate highways in Virginia. It's important to note that speed limits may vary depending on specific locations and can be subject to change. Therefore, drivers must pay attention to road signs indicating the current speed limit, which is the de jure speed limit, and also be aware of the de facto speed limit, which is the speed at which police are likely to enforce the speed limit.