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 theta₁ and theta₂ respectively with the initial direction of motion. The sum of the angles theta₁+theta₂ is:
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 theta₁ and theta₂ respectively with the initial direction of motion. The sum of the angles theta₁+theta₂ is:
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For elastic collision of identical masses, velocities are perpendicular after collision.
Updated On: Mar 20, 2026
- \(45^\circ\)
- \(90^\circ\)
- \(135^\circ\)
- 180^∘
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The Correct Option is B
Solution and Explanation
Step 1: In elastic collision of equal masses: vecv₁ ⊥ vecv₂
Step 2: Hence: theta₁+theta₂=90^∘
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