Force of Friction Change with Increasing Mass m?

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The discussion centers on whether the force of friction changes with an increasing mass m in a pulley system involving a puck and a mass hanging off a table. Participants clarify that the string and pulley are massless, which affects the dynamics of the system. The main question revolves around the relationship between mass, normal force, and friction, particularly in static friction scenarios. It is noted that static friction depends on the normal force, which is influenced by the weight of the hanging mass. The conversation emphasizes the theoretical nature of the question rather than practical homework concerns.
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Imagine a pulley system, where a puck is connected by a massless string to a massless pulley that joins a mass m that's hanging at the end of the table.

Would the force of friction change as you increase mass m , the object that's hanging? why so?

This is not a HW question.
 
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no, because the string and pulley are massless?
 
tnutty said:
Imagine a pulley system, where a puck is connected by a massless string to a massless pulley that joins a mass m that's hanging at the end of the table.

Would the force of friction change as you increase mass m , the object that's hanging? why so?

This is not a HW question.

Pretty weird general interest question. Sure sounds like homework/coursework.

What is the research/work context of your question?
 
please draw a picture
 
tnutty said:
Would the force of friction change as you increase mass m , the object that's hanging? why so?
I assume you mean the force of friction on the puck. How would you calculate that force?
 
tnutty, I think what you're asking is, if I could somehow "dial down" gravity (with a possibly elaborate system of pulleys and counterweights), would friction decrease?

Well, you tell me. In the case of static friction, which is what you appear to have described, does the fricative force depend on the Normal force? Or is is just whatever value is needed to oppose motion?
 

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