magnitude of the resultant of two forces of the same magnitude equal to the magnitude of them. then the angle between those vectors is
A.0 degrees B 60 degrees C.120.degrees D.90degrees
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magnitudes of forces = P and P.
let Ф be the angle between them.
magnitude of Resultant = P² = P² + P² + 2 P P Cos Ф
=> CosФ = -1/2
=> Ф = 120 deg or 2π/3
let Ф be the angle between them.
magnitude of Resultant = P² = P² + P² + 2 P P Cos Ф
=> CosФ = -1/2
=> Ф = 120 deg or 2π/3
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