Two particle and , initially at rest, move towards each other under a mutual force of attraction. At the instant when the speed of is and the speed of is , the speed of the centre of mass of the system is |
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a) |
b) |
c) |
d) |
Zero |

Two particle and , initially at rest, move towards each other under a mutual force of attraction. At the instant when the speed of is and the speed of is , the speed of the centre of mass of the system is |
|||||||

a) |
b) |
c) |
d) |
Zero |

1 Answer

127 votes

We know that (i) We consider the two particles in a system.Mutual force of attraction is an internal force. There are no external forces acting on the system. From Eq.(i), we get Since initial therefore, final |

127 votes

127