A man walks 1km due east and then 1 km due north His displacement

A man walks 1km due east and then 1 km due north His displacement
A. √2km N 45°E
B. 1km N 30°E
C. 1km N 15°E
D. √2km N 60°E

Correct Option: Answer is A
Magnitude of displacement = √1²+1²=√2km
Direction of displacement, θ:
tanθ=1/1
θ=tan‾¹1
θ=45º
√2km N 45º E

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