Center on mass trigonometric trick

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The discussion focuses on challenges faced in solving center of mass problems involving collisions, particularly the reliance on trigonometric techniques for analyzing vectors in both the center of mass and lab frames. The user seeks advice or tricks to simplify these types of problems, specifically referencing scenarios like two balls colliding. An example is mentioned, but the user finds it difficult to explain fully. The conversation highlights a common struggle in classical physics coursework related to visualizing and calculating collision dynamics. Overall, the need for clearer strategies in handling these problems is emphasized.
barak
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hey there I am doing a lot of center of mass problem most of them with collisions , and most of the solutions I see, have a big part of "trigonometric trciks", like the way u watch the vectors in cm frame and the way in the lab frame. does anyone met this kind of solutions and have some tricks or advices that wil be great.
btw I am in classical physics (course)
thx
 
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Have you got an example of such a question?
 
well it pretty hard to explain but ill just say that the proble,m is of two balls striking each other and in the first graph is the cm graph the other one is the lab frame.
I hope it will help/ and there are a lot of problems like that
 

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