Starting from a point P, Sachin walked 20 m towards South. He turned l...
Given Information:
Starting from point P, Sachin walked 20 m towards South. He turned left and walked 30 m. He then turned left and walked another 20 m.
Calculating the Position of Point Q:
To find the position of point Q, we need to analyze Sachin's movements step by step.
Step 1: Walking 20 m towards South
Starting from point P, Sachin walks 20 m towards the South. This means he moved downward from point P.
Step 2: Turning Left and Walking 30 m
After walking 20 m towards the South, Sachin turns left and walks 30 m. Since he turned left, his new direction is towards the East (perpendicular to South). Therefore, he moves 30 m in the East direction.
Step 3: Turning Left and Walking 20 m
After moving 30 m towards the East, Sachin turns left again and walks 20 m. Since he turned left, his new direction is towards the North (perpendicular to East). Therefore, he moves 20 m in the North direction.
Final Position of Point Q:
After completing the above steps, Sachin's final position is 20 m north and 30 m east from point P. We need to find the straight-line distance and direction from point P to point Q.
Calculating the Distance:
Using the Pythagorean theorem, we can calculate the straight-line distance between the two points:
Distance = √((North Distance)^2 + (East Distance)^2)
Distance = √((20)^2 + (30)^2)
= √(400 + 900)
= √1300
≈ 36.06 m
Therefore, the distance between point P and point Q is approximately 36.06 m.
Calculating the Direction:
To determine the direction, we can use the concept of compass directions. Since point Q is 20 m to the North and 30 m to the East of point P, the direction can be described as North-East.
However, the answer choices are given in terms of cardinal directions (North, South, East, West). To convert the direction to cardinal terms, we can use the following rules:
- If the direction is between North and East, it is North-East.
- If the direction is between North and West, it is North-West.
- If the direction is between South and East, it is South-East.
- If the direction is between South and West, it is South-West.
In this case, the direction is between North and East, so the cardinal direction is East.
Final Answer:
The point Q is approximately 36.06 m away from point P in the East direction. Therefore, the correct answer is option 'A': 30 m, West.