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Question 5105
NEET Physics · Easy

Basic Mathematics & Vectors: Vector Addition MCQ

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Vector AdditionEasyQuestion 5105

Question

Two forces of 3 N and 4 N act at right angles to each other. The resultant force is:
  1. A
    7 N
  2. B
    5 N
    Correct
  3. C
    1 N
  4. D
    12 N

Correct answer

5 N

Explanation

For perpendicular forces: R = √(3² + 4²) = √25 = 5 N. This is the classic 3-4-5 right triangle.

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