BITSAT Physics Work Energy And Power Online Test Set A

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Question 1

Question

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 _1 and _2 respectively with the initial direction of motion. The sum of the angles _1 + _2, is :

Answer
180°
45°
135°
90°