1. The problem statement, all variables and given/known data A large fish travelling at 2m/s initially swallos at a smaller fish which is initially at rest. The large fish then, travels at a reduced speed. The large fish weighs 3 times heavier than the smaller fish. What is the velocity of the large fish and the small fish after the collision? I have no clue as to how to figure this out. Shouldn't both fish be traveling at the same speed after the collision?