A steel ball o mass suffers one-dimensional elastic collision with a row of three steel balls, each of mass If mass has collided with velocity and the three balls numbered 1, 2, 3 were initially at rest, then after the collision

a) |
Balls 1, 2 and 3 would start moving to the right, each with velocity |

b) |
Balls 2 and 3 would start moving to the right, each with velocity |

c) |
Balls 2 and 3 would start moving to the right, each with velocity |

d) |
Ball 1 and ball of mass would remain at rest |

A steel ball o mass suffers one-dimensional elastic collision with a row of three steel balls, each of mass If mass has collided with velocity and the three balls numbered 1, 2, 3 were initially at rest, then after the collision

a) |
Balls 1, 2 and 3 would start moving to the right, each with velocity |

b) |
Balls 2 and 3 would start moving to the right, each with velocity |

c) |
Balls 2 and 3 would start moving to the right, each with velocity |

d) |
Ball 1 and ball of mass would remain at rest |

1 Answer

5876 Votes

3537

In option (a), neither momentum nor kinetic energy is conserved so collision is not elastic. Hence, option (a), is not correct b. Same difficulty lies with option (b). So, only options (c) and (d) are correct |

In the following question letters/letter groups are arranged in a particular order with some underlying criterion. Study the order and choose the answer from the alternative to fill the gaps.

ELFA, GLHA, ILJA, ……………, MLNA |
|||||||

(a) |
OLPA |
(b) |
KLMA |
(c) |
LLMA |
(d) |
KLLA |

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