71 mi/hr speed should the car travel to reach the destination at the same time as the truck
Time taken by truck =6 hr
Distance d=426mi
So, constant speed=426/6 = 71 mi/hr
Speed, which is a scalar number, is the "speed at which an item is moving." The pace at which an item travels a distance may be thought of as its speed. A fast-moving item travels at a high speed and completes a significant distance in a brief period of time. This is in contrast to an object moving slowly, which covers a lot of ground in a short amount of time. An object with zero speed is not moving at all.
To know more about speed visit : https://brainly.com/question/93357
#SPJ4