Two bodies and of definite shape (dimensions of bodies are not ignored). is moving with speed of 10 and is in rest, collide elastically. The |
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a) |
Body comes to rest and moves with speed of 10 |
b) |
They may move perpendicular to each other |
c) |
and may come to rest |
d) |
They must move perpendicular to each other |

Two bodies and of definite shape (dimensions of bodies are not ignored). is moving with speed of 10 and is in rest, collide elastically. The |
||||||||

a) |
Body comes to rest and moves with speed of 10 |
b) |
They may move perpendicular to each other |
c) |
and may come to rest |
d) |
They must move perpendicular to each other |

1 Answer

127 votes

(a) This is only possible when collision is head on elastic. (b) When collision is oblique elastic, then in this case, both bodies move perpendicular to each other after collision (c) Since, in elastic collision, kinetic energy of system remains constant so, this is not possible. (d) The same reason as (b). |

127 votes

127