In the morning, from Point A, a man started walking 10 m towards the direction…
2023
In the morning, from Point A, a man started walking 10 m towards the direction of the Sun, and then took a right turn and walked 10 m. Again, he took a right turn and walked 10 m, and then took another turn in the left direction and walked 10 m. After this, he walked 20 m towards the direction of the Sun, and finally walked 20 m towards the north direction. In what direction and at what distance is he now from his initial point?
Answer: A. 20 m, east — Solution: Interpret 'direction of the Sun' in the morning as east. Start at (0, 0). Walk 10 m east → position (10, 0). Turn right (facing east → right =…
- A.
20 m, east
- B.
20 m, west
- C.
10 m, east
- D.
10 m, west
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Correct answer: A
Solution: Interpret 'direction of the Sun' in the morning as east.
Start at (0, 0). Walk 10 m east → position (10, 0).
Turn right (facing east → right = south). Walk 10 m → position (10, -10).
Turn right again (facing south → right = west). Walk 10 m → position (0, -10).
Turn left (facing west → left = south). Walk 10 m → position (0, -20).
Walk 20 m towards the Sun (east) → position (20, -20).
Walk 20 m north → final position (20, 0).
Final displacement: 20 m east (20 m from the starting point, due east).