A person walks 3 km north and then 4 km west. What is the person’s final position with respect to the starting point?
Question and options
A person walks 3 km north and then 4 km west. What is the person’s final position with respect to the starting point?
- 7 km north
- 1 km south
- 5 km west
- 5 km northwest
Answer and explanation
Correct answer: D - 5 km northwest
3 km north and 4 km west give a resultant of km, pointing between north and west. So the person is 5 km to the north-west (more precisely, a little west of north-west) of the start.
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CUSAT CAT M.Sc. Bioethics
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