Pulley Motion Analysis: Determining Tension in a String

AI Thread Summary
The discussion revolves around interpreting a physics question regarding the tension in a string related to pulley motion. The main query is whether the variables mass (m) and gravitational acceleration (g) need specific values or can remain as symbols in the tension expression. Participants clarify that m and g should be treated as variables, allowing for a general formula for tension without needing to calculate their values. This understanding reassures the original poster that they are on the right track. The conversation emphasizes the importance of correctly interpreting physics problems in terms of variables.
_Mayday_
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Hey, I will post the actual question later. First of all I would like to just make sure I have interpreted the question correctly.

The Question

(a) By considering the motion of A, find, in terms of m and g, the tension in the string.

What is it actually asking me here? In terms of, does that mean find a value for m and g or what?

Thank you
_Mayday_
 
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It is looking for the tension. m and g, will appear as variables, in the expression for Tension.
 
I'm sorry I don't understand that. Does that mean that m and g could be unknown?
 
_Mayday_ said:
I'm sorry I don't understand that. Does that mean that m and g could be unknown?

Yes, it just means leave m and g in as terms in the tension; you don't need to bother working out what they are.
 
That is great news! That means I haven't gone wrong yet. I'll post the question here in a bit if I get stuck. Thanks to you both! :smile:
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »

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