While John is traveling along a straight interstate highway, he notices that the mile marker reads 280. John travels until he reaches the 156-mile marker and then retraces his path to the 175-mile marker. What is John's resultant displacement from the 280-mile marker?

280-175 = ?

105 To find John's resultant displacement from the 280-mile marker, we need to determine the total distance he traveled and the direction.

First, let's find the total distance John traveled. John initially traveled from the 280-mile marker to the 156-mile marker. The distance between these two markers is 280 - 156 = 124 miles.

Next, John retraced his path and traveled from the 156-mile marker to the 175-mile marker. The distance between these two markers is 175 - 156 = 19 miles.

To find the total distance traveled, we add the two distances together: 124 + 19 = 143 miles.

Now, let's determine the direction of John's displacement. Since John traveled back to the 175-mile marker after reaching the 156-mile marker, his displacement from the 280-mile marker is in the opposite direction. Therefore, the displacement is negative.

Putting it all together, John's resultant displacement from the 280-mile marker is a distance of 143 miles in the opposite direction, or -143 miles.