The magnitude of R of the resultant of two vectors is equal to the magnitude of one vector . If the resultant be normal to this vector , then determine the magnitude of the other .
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If the magnitude of the resultant of two equal vectors is equal to that of either vector, find the angle between them.
My Attempt: Let a⃗ and b⃗ be two vectors such that ∥a⃗ ∥=∥b⃗ ∥
Magnitude of Resultant:
=√a²+b² + 2ab cos θ
=√2a²+2ab cos θ
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