(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A mass [tex]m_{1}[/tex] is hanging from a light cord which is strung over a pulley of moment of inertia, I, and radius [tex]R_{0}[/tex] and connected to a mass [tex]m_{2}[/tex] which is sliding on a rough horizontal surface with coefficient of friction [tex]\mu_{k}[/tex].

a) What is the acceleration of the system?

b) What are the tensions in each part of the cord?

All help is appreciated! :)

2. Relevant equations

[tex]\Sigma[/tex]F = ma

[tex]\Sigma\tau[/tex] = m[tex]R^{2}\alpha[/tex]

3. The attempt at a solution

I started by trying to sum up all the forces and torques but I don't know where to go from there.

[tex]\Sigma F_{x} = T - \mu m_{1}g = (\mu m_{1} + m_{2})g = ma[/tex]

[tex]\Sigma F_{y} = T = m_{2}g[/tex]

[tex]\Sigma \tau = rF_{x} + rF_{y}[/tex]

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# 2 masses on a pulley

**Physics Forums | Science Articles, Homework Help, Discussion**