The distance covered by Ray is 90 feets . His displacement is 30 feets.
The distance covered is the total sum of the length covered by Ray .
Hence, we have ;
The displacement is the distance between Ray's current position and his starting spot.
Hence, we have ;
- Distance between 30 feeta south and 30 feets north, which is 30 feets .
Hence, His displacement is 30 feets.