A timber of uniform cross section with a mass of 90 kg is hinged at its lower end and held at angle of 60 degrees with the horizontal by a rod attached as shown in (attached figure 4-6)
A cylinder which has a mass of 30 kg is placed between the timber and the wall.
1) What are the horizontal and vertical components of the reaction at A?
2) What is the force between the cylinder and the timber?
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Solution attaches a .jpg to show the handwritten calculations to solve for horizontal and vertical components of a reaction as well as the force between the cylinder and timber involved.