A person walked 25m towards North, then took a left turn and walked 30m. The…
2025
A person walked 25m towards North, then took a left turn and walked 30m. The person again took a left turn and walked 25m. How far and in which direction is that person from the starting position?
- A.
30 m to the West
- B.
25 m to the North
- C.
20 m to the East
- D.
40 m to the South
Attempted by 38 students.
Show answer & explanation
Correct answer: A
Solution: Determine the net displacement by treating each move as a vector and adding them.
First move: 25 m to the north → vector (0, +25).
Second move (left turn from north): 30 m to the west → vector (−30, 0).
Third move (left turn from west): 25 m to the south → vector (0, −25).
Add the vectors: (0, +25) + (−30, 0) + (0, −25) = (−30, 0).
Answer: The person is 30 m to the west of the starting position.