Question

Two vector both equal in magnitude,have their resultant equal in magnitude of either vector.The angle between the vector is option are
a]30
b] 120
c]60
d]150

[explain with proper explanation pls]

Answer 1

Answer:

solved

Explanation:

resultant = R

R² = 2F² - 2F²cos∝ = 4F²sin²∝/2 = F² , sin∝/2 = 1/2 , ∝/2 = 30°

∝ = 60°