A red snooker ball and a blue snooker ball (each with a mass of 160 g) collide. The red ball is travelling from left to right at 0.28 ms-1. The blue ball is travelling from right to left at 0.12 ms-1.
He added different coloured balls into a version of billiards which included just the red and black ones. Image caption, A snooker table set out for a new frame If you’re a newcomer to snooker ...
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