Conservation of Momentum in a Fishy Encounter

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The discussion revolves around a physics problem involving the conservation of momentum in a scenario where a 5kg fish swallows a 1kg fish. The initial momentum of the system is calculated, and it is determined that the larger fish's speed after the encounter is -5m/s when the smaller fish is at rest. The conversation highlights the need for clarity in the problem statement, specifically correcting the phrasing regarding the smaller fish's state. Additionally, there is a query about the larger fish's speed if the smaller fish approaches at 4m/s. The importance of applying momentum conservation principles is emphasized in solving the problem.
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Homework Statement



A 5kg fish is swimming at 1m/s swallows an absent minded fish swimming 1kg fish at rest. (a) Show that the speed of the larger fish after lunch is -5m/s. What would be its speed if the smaller fish was traveling toward it at 4m/s

Homework Equations



momentum=mv?

The Attempt at a Solution


I don't know what to do...sorry
 
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You can use conservation of momentum, but first you need to correct your problem statement '..fish swimming 1kg fish at rest..' :confused:
 

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