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Tuesday, September 2, 2008

Paper One : Difficulties

Q 7.
Elastic collision : Apply COM and COKE, leads to u1-u2=v2-v1(third equation).
Together with COM and the above velocity of approach =velocity of separation(third equation) , the unknowns can be found. This is the shortest method.
Longer method : Use COM and COKE and solve these two equations without the third equation , good luck if you survived.