Generally, the average car speed is whatever the speed limit is. While some go over and under, others stay right on the speed limit, making it the average.
That depends on how fast you are driving. At 65 mph, highway speed, with no stops, that is 1038/65 = 16 hours driving time
Your average speed was 59.3 miles per hour.
In 2014 is you drive much too fast on the highway of Japan the police may let you go due to the speed limit on their vehicles. However, they can use alternate methods to catch you such as average speed camera traps. Which are based on your average speed between two camera traps and an ID on the face of the driver in the picture.
Car emissions can be reduced by reducing idling time and by driving at a moderate highway speed when possible. Driving too fast and idling are both wasteful in terms of fuel, and increase the vehicle's emissions.
Probably the speed of light!
That will depend on how fast you are driving. About 1 hr 45 minutes at highway speeds.
Speed up as fast as possible
No, especially it's raining or for other inclement weather. Even if you drive the posted speed limit on highway you could be issued a traffic citation for driving too fast for conditions.
The average speed of any car should be the posted speed limit.
No faster than the posted legal limit!!
Average speed and instantaneous speed are both measurements of the speed of an object. The instantaneous speed measures how fast the object is going at a particular moment, while average speed shows how fast the object was moving in total over time.
That would depend on how fast you are traveling.At an average highway speed of about 100km/hr it would take a little less than 2 hours.