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Jadhav Singh
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Asked: 2021-02-11T07:15:38+00:00 In:

At what angle do the two forces (P + Q) and (P – Q) act so that the resultant is √(3P²+Q²).

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2020-2021cbsechapter 2class 11class 11 sciencekinematicncertphysicsscience
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    1 Answer

    1. Use R= √(A^2+B^2+2 ABcosQ)
      R= √(3P^2+Q²) ,A=P=Q,
      B= P-Q
      Solve, θ=60°
      Establish the following vector inequalities :

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