While john is traveling along a straight interstate highway, he notices that the mile marker reads 252 km. john travels until he reaches the 134 km marker and then retraces his path to the 163 km marker. what is john’s resultant displacement from the 252 km marker? answer in units of km.

During the 1800s. hope this !

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction