Two equal vectors have a resultant equal to √2 times the magnitude of either vector. Find the angle between them in degrees.
Physics · Mathematical tools and vector · Vector
NEET JEE Mains

Question

Two equal vectors have a resultant equal to √2 times the magnitude of either vector. Find the angle between them in degrees.

G1 Physics · Accepted Answer

√2 A=2A cos(θ/2), so cos(θ/2)=1/√2 and θ=90°.