A person travels 10 km north, then 10 km south, and finally 10 km east. How far

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Question: A person travels 10 km north, then 10 km south, and finally 10 km east. How far is he from the starting point?

Options:

Correct Answer: 10 km

Solution:

The person ends up 10 km east of the starting point, so he is 10 km away.

A person travels 10 km north, then 10 km south, and finally 10 km east. How far is he from the starting point?

A person travels 10 km north, then 10 km south, and finally 10 km east. How far is he from the starting point?

Step 1: The person starts at a point, which we will call the starting point.
Step 2: The person travels 10 km north. Now he is 10 km north of the starting point.
Step 3: The person then travels 10 km south. This brings him back to the starting point because he moves the same distance south as he did north.
Step 4: Now, the person travels 10 km east. He is now 10 km east of the starting point.
Step 5: To find out how far he is from the starting point, we look at his final position. He is 10 km east of where he started.

Displacement – Understanding how to calculate the net change in position after a series of movements in different directions.
Vector Addition – Applying vector addition principles to determine the final position relative to the starting point.