A man walks 1km due east and then 1 km due north His disp...
A man walks 1km due east and then 1 km due north His displacement?
√2km N 45°E
1km N 30°E
1km N 15°E
√2km N 60°E
Correct answer is A
His movements 1km due east and then 1 km due north make a Right-Angled Triangle.
Using Pythagoras' theorem;
The Resultant becomes the Hypotenuse [h]
Hyp2 = Adj2 + \Opp(^2\)
Hyp2 = 12 + 12
Hyp2 = 2 → Hyp = √2
: Resultant = √2
DIRECTION TAN Ø = OPPADJ
TAN Ø = 11
Ø = TAN−1 [1]
Ø= 45°
Displacement is √2km N 45°E
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