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MHT CET202014 Oct 2020Morning ShiftPhysicsMathematics in PhysicsActual

The angle between two forces of equal magnitude R , if the magnitude of their resultant is R 2

Options

  1. A⁻¹ (- 7 8 )
  2. B⁻¹ (- 5 7 )
  3. C⁻¹ (- 3 7 )
  4. D⁻¹ (- 3 4 )

Correct answer

A. ⁻¹ (- 7 8 )

Step-by-step solution

( R 2 )²=R²+R²+2 R² =- 7 8 = ⁻¹ ( -7 8 )

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