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## Homework Statement

A Fletcher's trolley apparatus is set up with a block of wood of mass 4.0kg and a suspended mass of 2.0kg.

## The Attempt at a Solution

a) Calculate the acceleration of the sys. and the tension in the string when the mass is released.

m1

FnetX = [T - Ff = m1(a)]

FnetY = [Fn - Fg = 0]

m2

No FnetX

FnetY = [T - Fg = -m2(a)]

Equation to find the acceleration in this situation:

[tex]a = \frac{Fg - Ff}{mass1 + mass2}[/tex]

The second part of the question is:

b) What is the max. value of the coefficient of friction that will allow the sys. to move?

I am stuck as to how to find this out.

I know:

[tex]Ff = μFn[/tex]

[tex]Ff = μ(mass1)(g)[/tex]