alleryStart learning →A hiker walks 3 km east, then 4 km north. What is the magnitude of the net displacement?
A7 km
B5 km
C1 km
D12 km
Answer & Solution
Correct answer: B. 5 km
The resultant of (3, 0) and (0, 4) is (3, 4), whose length is 5 km.
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