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PHYSICS

JAMB 2002 - Question 7

Physics 2002 JAMB Past Questions - Question 7: Two forces each of 10N act on a body, one towards the north and the other towards the east. The magnitude and the direction of the resultant force are

Choose the correct answers from the options given.

Two forces each of 10N act 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 Answer

Explanation

From Pythagoras,
R2 = 10^2 + 102
= 100 + 100
= 200
therefore R2 = √200 = √2 x 100
= 10√2, in the direction 45°E