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Three particles with equal mass move wit...

Three particles with equal mass move with equal speed `v` along the medians of an equilateral triangle as shown. They all collide at the centroid simultaneously. After the collision. `A` comes to rest, `B` retraces it's path with same speed. What is speed of `C` after the collision?

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Verified by Experts

The correct Answer is:
`vec(v)_(c ) = -vec(v)_(B)`
COLM : implies that `vec(v)_(C )` & `vec(v)_(B)` are opposite to each other.
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ALLEN -CENTRE OF MASS-EXERCISE-IV A
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