Three particles and of equal masses move with equal speeds along the medians of an equilateral triangle. They collide at the centroid of the triangle. After collision comes to rest while retraces its path with speed The velocity of is then

a) |
direction |
b) |
direction |
c) |
2 direction |
d) |
direction |

Three particles and of equal masses move with equal speeds along the medians of an equilateral triangle. They collide at the centroid of the triangle. After collision comes to rest while retraces its path with speed The velocity of is then

a) |
direction |
b) |
direction |
c) |
2 direction |
d) |
direction |

1 Answer - 5876 Votes

3537

Initial momentum of the system is zero. So,final momentum should also be zero. Finally, comes to rest after collision so to have final momentum zero, and should move in opposite directions |