- #1

masterchiefo

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## Homework Statement

A block of mass M = 1 kg is placed between a vertical wall and the end of A

beam mass m = 10 kg . If μ S = 0.6 A , determine the minimum value of the angle θ min

θ for which the block remains in equilibrium and the coefficient of friction

Static B μ S corresponding to prevent the beam from sliding B.

Picture of the problem in attachment.

## Homework Equations

## The Attempt at a Solution

Block:

∑Fy = +fsa

_{block}-W

_{block}= 0

∑Fx = +N

_{block}= 0

Beam:

∑Fx = -fsa

_{beam}+ NA =0

∑Fy = -W

_{beam}+NB + fsa

_{beam}=0

is this correct? and how can I possibly find the min θ?

thank you.

#### Attachments

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