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NEET
Exam
NEET
Subject
Physics
Chapter
Motion in Two Dimensions

NEET · Physics · Motion in Two Dimensions

Find the magnitude of the resultant of two vectors A and B in terms...

Find the magnitude of the resultant of two vectors A and B in terms of their magnitudes and angle θ between them.

Options

  1. AR=A2+ B2+2ABcosθR=\sqrt{{{A}^{2}}+~{{B}^{2}}+2ABcos\theta }
  2. BR=A2+ B2+2ABsinθR=\sqrt{{{A}^{2}}+~{{B}^{2}}+2ABsin\theta }
  3. CR=A+ B+2ABcosθR=\sqrt{A+~{{B}^{{}}}+2ABcos\theta }
  4. DR=A+ B+2ABsinθR=\sqrt{{{A}^{{}}}+~{{B}^{{}}}+2ABsin\theta }

Correct answer

A. R=A2+ B2+2ABcosθR=\sqrt{{{A}^{2}}+~{{B}^{2}}+2ABcos\theta }

Step-by-step solution

Correct Option is : (A)
R=A2+ B2+2ABcosθR=\sqrt{{{A}^{2}}+~{{B}^{2}}+2ABcos\theta }
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