Calculating Coefficient of Friction for a Pulley System

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SUMMARY

The discussion centers on calculating the coefficient of friction for a pulley system involving two blocks, where one block (m2) is hanging and the other (m1) is on a horizontal surface. The friction force was measured at 1.03N, and the mass of the hanging block (m2) is given as 0.1051kg. The equation used, 1.03N = m2/m1(m1g), is intended to relate the forces acting on the system, but the user struggles to reconcile the calculated mass of m1 with the measured value of 0.3160kg. Clarifications are sought regarding the interpretation of the forces and the setup of the pulley system.

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jrab
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Homework Statement



if i am missing something that prevents you from answering and let me know ill try and add it

A block pulls another block across a wooden surface via a pulley at a constant speed. the surface is horizontal
the mass of the block on the horizontal surface is unknown. determine kinetic co efficient of friction.

friction was determined to be 1.03N

Ff=F2g<-- force of masses pulling down on string (since its constant f2g or the fa must equal friction in order to get a net force of zero)

coefficient is equal to mass2/mass1

i have this equation of

1.03N=m2/m1(m1g)

m2 is equal to 0.1051kg

when i try to solve for m1 i get a value of one, we measured the mass with a scale and it is around .3160kg, what am i doing wrong.

sorry if i left anything out just let me know
 
Last edited:
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i don't understand what you're doing :confused:

is this a block of mass m1 on a horizontal table attached by a rope over a frictionless pulley to a another mass m2 hanging vertically, with m2 given as 0.1051kg?

is the rope horizontal, or at an angle?

what is the 1.03N supposed to be (it's obviously not the coefficient of friction)? how did you measure it?

what does "1.03N=m2/m1(m1g)" mean?
 

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