resultant of two vectors of equal amplitude is equal in magnitude with one of the vectors calculate the angle between them
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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 a→ and b⃗ b→ be two vectors such that ∥a⃗ ∥=∥b⃗ ∥‖a→‖=‖b→‖
Magnitude of Resulatant
=√a2+b2+2abcosθ
=√a2+b2+2abcosθ
=2(a2+2abcosθ)
My Attempt: Let a⃗ a→ and b⃗ b→ be two vectors such that ∥a⃗ ∥=∥b⃗ ∥‖a→‖=‖b→‖
Magnitude of Resulatant
=√a2+b2+2abcosθ
=√a2+b2+2abcosθ
=2(a2+2abcosθ)
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