Question

The resultant of two vectors is equal to either of them if



The two vectors are of the same magnitude.

The magnitude of the resultant of the two vectors will be equal to either of the two vectors.

The two vectors are at 120⁰

d) All of the above.

​

Answer 1

Answer:

gghn

Explanation:

vnv Dr hjhftghvvgvvvvggccvvvd

Answer 2

Answer:

This is an important result to remember. Two vectors at 120 degree produce a vector equal to their magnitude. Let their magnitude be a,

Resultant = a =

(a

2 +a 2+2×a×a×cosθ) = a (2+2cosθ)

=> cosθ =− 21

=>θ = 120