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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