Projectile Strike Homework: Angular Momentum

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The discussion revolves around solving a homework problem related to angular momentum in the context of a projectile strike. Participants emphasize the importance of using the conservation of angular momentum principle to approach the problem. The conversation suggests starting by calculating the angular momentum before the collision to establish a foundation for the solution. There is a consensus that defining the initial conditions is crucial for formulating the necessary equations. Understanding these concepts is essential for successfully completing the homework assignment.
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Homework Statement



http://i.imgur.com/vykpq.png
vykpq.png



Homework Equations





The Attempt at a Solution



Feel like should use conservative of angular momentum but not sure how to write equations
 
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TBBTs said:
Feel like should use conservative of angular momentum …

That's right :smile:

start by writing the angular momentum before the collision …

what is that?​
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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