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MHT CET202016 Oct 2020Evening ShiftPhysicsMathematics in PhysicsActual

The x, y components of vector P have magnitudes 1 and 3 and the x , y components of resultant of P and Q have magnitudes 5 and 6 respectively. What is the magnitude of Q ?

Options

  1. A4
  2. B5
  3. C3
  4. D2

Correct answer

B. 5

Step-by-step solution

AS, P =1 i +3 j -(i) And, p + Q =5 i +6 j -(i i) Q =4 i +3 j aligned | Q |= 4²+3² = 16+9 &= 25 &=5 aligned option-2 correct

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