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The resultant of two vectors is perpendicular to first vector of magnitude 6 N . If the resultant has magnitude 6 3 N , then magnitude of second vector is

Options

  1. A6 2 N
  2. B12 N
  3. C9 3 N
  4. D6 3 N

Correct answer

B. 12 N

Step-by-step solution

B Cos θ = 6 B Sin θ = 6 3 B = 6 2 + 6 3 2 = 12

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