How Do Friction and Incline Angle Affect Forces Between Two Sliding Masses?

[nikieme]

Homework Statement

Two weights are placed on a rough incline, inclined for 48 degrees. Weight 1, m1 =3.5 kg has coefficient of friction of 0.55 and weight 2, mass m2=7.0 kg, has coefficient of friction 0.10. Initially, weights 1 and 2 are placed one after the other and are at rest. They start sliding downt the incline, weight 2 pushing weight 1. Calculate the force bewteen the weights 1 and 2.

Homework Equations

How should i approach ... ? Where to start this question... ? Any hints ?

The Attempt at a Solution

 

[vela]

With force problems, you always start by identifying the forces on each body and drawing free-body diagrams.