Previous Year NEET Question- Impact And Collision
1.
The answer is (B).
The initial momentum of the system is mv. The final momentum of the system is mv/2 + 2mv/2 = mv. Since the momentum is conserved, the ratio of final velocity of the first body to that of the second body is 1:1.
2.
The answer is (C).
The initial kinetic energy of the first ball is mv²/2. The final kinetic energy of the first ball is mv²/4. Since the kinetic energy is conserved, the kinetic energy of the first ball after collision is mv²/4.
BETA
