A person walks 3 km south, then 4 km east, and then 3 km north. What is his fina

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Question: A person walks 3 km south, then 4 km east, and then 3 km north. What is his final position?

Options:

Correct Answer: 1 km East

Solution:

The person ends up 1 km east of the starting point after the movements.

A person walks 3 km south, then 4 km east, and then 3 km north. What is his final position?

A person walks 3 km south, then 4 km east, and then 3 km north. What is his final position?

Step 1: Start at the initial position, which we can call point A.
Step 2: Walk 3 km south from point A to point B.
Step 3: From point B, walk 4 km east to point C.
Step 4: From point C, walk 3 km north to point D.
Step 5: Determine the final position at point D relative to point A.
Step 6: Since you walked 3 km south and then 3 km north, you are back at the same north-south level as point A.
Step 7: However, you walked 4 km east, so you are now 4 km east of point A.
Step 8: The final position is 1 km east of the starting point.

Vector Addition – The question tests the ability to visualize and calculate movements in a coordinate system using vector addition.
Coordinate System – Understanding how to represent movements in a 2D plane using a coordinate system (north/south as vertical and east/west as horizontal).