Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collision the projectile and the struck particle move in directions making angles 
and 
respectively with the initial direction of motion. The sum of the angles. 
is
Text Solution
Verified by ExpertsThe correct answer is:
B
If the masses are equal and target is at rest and after collision both masses moves in different direction. Then angle between direction of velocity will be 90°, if collision is elastic.
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