Consider a big fish on the hunt for its lunch. The big fish has a mass of 10kg and it is
swimming at 2m/s towards its lunch—the little fish (2kg) who is just sitting still resting.
What will be the speed of the large fish immediately after lunch?
part B: What would be the speed of the large fish if the small fish was swimming towards the large fish at 3m/s when he was eaten?
part C:What would be the speed of the large fish if the small fish was swimming away from the large fish at 1.5m/s when he was eaten?
