two forces equal in magnitude act at a point simultaneously. the magnitude of the resultant of two forces is equal to the magnitude of either.the angle bettween two forces is...?? please i want the answer as soon as possible with method please..
We know that the magnitude of the resultant of two vectors is given by the formula:
where is the angle between the two vectors. It is given that all three vecors have same magnitude, so let each vector have magnitude A. Then, we can solve for ,
Solving for , we get
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If the magnitude of two forces and resultant is x then x^2 = x^2 + x^2 + 2x^2xcos(@) where @ is angle between two vectors. By solving we get cos(@) = -1/2 or @ = 120 degree
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