Question on: JAMB Physics - 2002
Two force each of 10N acts on a body, one towards the north and the other towards the east.
The magnitude and the direction of the resultant force are
A
20N, 45°E
B
20N, 45°W
C
10√2N, 45°W
D
10√2N, 45°E
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Correct Option: D
From Pythagoras,
R2 = 102 + 102
= 100 + 100
= 200
therefore R2 = √200 = √2 x 100
= 10√2, in the direction 45°E
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