. Two balls A and B having masses 1 kg and 2 kg, moving with speeds 21 m/s and 4 m/s respectively in opposite direction, collide head on. After collisio


Two balls A and B having masses 1 kg and 2 kg, moving with speeds 21 m/s and 4 m/s respectively in opposite direction, collide head on. After collision A moves with a speed of 1 m/s in the same direction, then correct statements is :
 

  • (A):The velocity of B after collision is 6 m/s opposite to its direction of motion before collision.
  • (B):The coefficient of restitution is 0.2.
  • (C):The loss of kinetic energy due to collision is 200 J.
  • (D):The impulse of the force between the two balls is 40 Ns.

Best Answer

Correct Answer:

Correct Answer:

(B):

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