if a car travels once around a 100-meter
racetrack what is its displacement
zero
it is back where it started
zero
Zero
To determine the displacement of a car traveling once around a 100-meter racetrack, we need to understand the definition of displacement. Displacement refers to the change in position of an object and is typically measured as the straight-line distance between the initial and final positions.
In this case, since the car starts and finishes at the same position (once around the racetrack), the initial and final positions are the same. Therefore, the car's displacement is zero.
To understand this conceptually, imagine yourself walking around a circular path and returning to your starting point. Although you have covered a certain distance (in this case, the circumference of the racetrack, which is approximately 314 meters), your starting and ending positions are the same, resulting in no net displacement.
Hence, the displacement of the car traveling once around a 100-meter racetrack is zero.