scalar
70
Any type of measurement is a unit rate. The speed limit is a measurement of time and distance.
69
The highest speed limit I know of on an Interstate highway in the U.S. is 75 MPH, but that varies.
A scalar, since no direction is specified.
around 65m.p.h on the straightaways
55, in the city, 65 or 70 outside of the city. (U.S.)
In the US, the maximum speed on an interstate highway is 70. Until recently, there were a couple of stretches of highway that were limitless.
It is important to drive safely. The speed limit on a rural interstate highway is usually set somewhere between 65 miles per hour and 80 miles per hour.
70 mph - unless otherwise posted.
70 mph - but some states do not allow that speed.
70 mph - unless otherwise posted.