Title: Language, literacy and numeracy
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BCGBC4010A Apply structural principles to residential low-rise constructions

Structural principles - Forces

Newton’s third law of motion

Newton’s third law - Action and reaction are equal and opposite
Diagram 1
A diagram shows a building without a brace. The resultant force pushes down on the left side of the building. The building moves left and right under the pressure. The building ultimately tilts to the left due to the pressure.
Diagram 2
A diagram shows a building with a brace supporting the left corner of the building. The resultant force pushes down on the left side of the building. The pressure from the resultant force is offset by a reaction force moving diagonally up the brace. 

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