Question

Two vectors of equal magnitude A with an angle thetha between them. The magnitude of their resultant​

Answer 1

Answer:

We have,

Two vectors having equal magnitude makes an ∠θ

Let the magnitude of each vector be A is:

R=√ (A ^2+A^2 +2A×Acosθ)

= √ [2A^2 (1+cosθ)]

= √ 2 A^2 × 2 cos θ/2

= 2A cos θ/2

hope it will help you.....