Question
Question: The magnitude of the resultant of two velocities of equal magnitude becomes√3 times when the directi...
The magnitude of the resultant of two velocities of equal magnitude becomes√3 times when the direction of one velocity is reversed. The angle between the velocity vectors is
A
300
B
600
C
1200
D
None of these
Answer
1200
Explanation
Solution
Let the velocities be ,
A = B (given),
⇒
Putting A = B we obtain θ = 120°,
Hence, (3) is correct