# Changes

## Pulley system on a double inclined plane

, 00:07, 13 August 2011
no edit summary
This article is about the following scenario. A fixed triangular wedge has two inclines $I_1$ and $I_2$ making angles $\alpha_1$ and $\alpha_2$ with the horizontal, thus making it a [[involves::double inclined plane]]. A [[involves::pulley]] is affixed to the top vertex of the triangle. A string through the pulley has attached at its two ends blocks of masses $m_1$ and $m_2$, resting on the two inclines $I_1$ and $I_2$ respectively. The string is inextensible. The coefficients of static and kinetic friction between $m_1$ and $I_1$ are $\mu_{s1}$ and $\mu_{k1}$ respectively. The coefficients of static and kinetic friction between $m_2$ and $I_2$ are $\mu_{s2}$ and $\mu_{k2}$ respectively. Assume that $\mu_{k1} \le \mu_{s1}$ and $\mu_{k2} \le \mu_{s2}$.

We assume the pulley to be massless so that its moment of inertia can be ignored for the information below.
==Summary of cases starting from rest==