# 2 Masses, Friction, Inclined Plane, Pulley problem

1. Nov 6, 2004

### shaggyster

Here's a problem I've been having trouble with. I was hoping someone out there can give me some insight on it. Basically it's just two masses both coupled together with a massless rope on a frictionless and massless pulley on an inclined plane WITH friction. Here's the diagram. The problem is to figure out the tension in the rope and the acceleration of the blocks.

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2. Nov 6, 2004

### Pyrrhus

Well, use Newton's 2nd Law, and pick a direction for the acceleration.

$$\sum_{i=1}^{n} \vec{F}_{i} = m \vec{a}$$

Also remember

$$F_{f} = \mu N$$

3. Nov 8, 2004

### pseudonewtonian

you get two dynamical equations... In which there are only two unknowns... Tension and acceleration..... frictional force is known... Two equations two variables...Voila ! Theres your answer