• In a perfectly elastic head on collision of two bodies of equal mass
    A) velocities of the bodies are exchanged
    B) velocities of the bodies are doubled
    C) velocities of the bodies are halved
    D) any of these depending on the mass ratio
  • In a perfectly elastic head on collision of two bodies of equal mass
    A) velocity of separation is same as velocity of approach
    B) velocity of separation is greater then velocity of approach
    C) velocity of separation is smaller then velocity of approach
    D) any of these depending on the mass ratio
  • In a perfectly elastic oblique collision of two equal masses
    A) velocities after collision are oppositely directed
    B) velocities after collision are at right angles to each other
    C) velocities after collision are in the same direction
    D) angle between the final velocity vectors varies
  • Two bodies of equal mass moving on a smooth horizontal surface undergo an elastic collision.Their velocities after collision are
    A) oppositely directed in Laboratory reference frame
    B) oppositely directed in Center of Mass reference frame
    C) oppositely directed in both the reference frame
    D) oppositely directed in neither of the reference frame
  • Two bodies of unequal mass moving on a smooth horizontal surface undergo an elastic collision.Their velocities after collision are
    A) oppositely directed in Laboratory reference frame
    B) oppositely directed in Center of Mass reference frame
    C) oppositely directed in both the reference frame
    D) oppositely directed in neither of the reference frame