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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

Statement 1: In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision. Statement 2: In an elastic collision, the linear momentum of the system is conserved.

Answer: (B)

Solution

Both statements are true: momentum is always conserved in a collision (not specific to elastic ones), and the equal-relative-speed property of elastic collisions is a well-known fact. However, Statement 2 does not correctly explain Statement 1 —

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Question ID VK-154160