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Mechanics Physics12 Drag forces and free body diagrams Mechanics Physics12 Drag forces and free body diagrams Drag forces & free bodies.

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Presentation on theme: "Mechanics Physics12 Drag forces and free body diagrams Mechanics Physics12 Drag forces and free body diagrams Drag forces & free bodies."— Presentation transcript:

1 Mechanics Physics12 Drag forces and free body diagrams Mechanics Physics12 Drag forces and free body diagrams Drag forces & free bodies

2 Mechanics Physics12 Drag forces and free body diagrams Mechanics Physics12 Drag forces and free body diagrams Mass & weight Force of gravity acts at a point. F = ma g = F/m F = ma g = F/m p28,29 centre of gravity vs. centre of mass

3 Mechanics Physics12 Drag forces and free body diagrams show all forces acting on a single object p23

4 Mechanics Physics12 Drag forces and free body diagrams p24-25 Friction & air-resistance

5 Mechanics Physics12 Drag forces and free body diagrams p24-25 When does it act?

6 Mechanics Physics12 Drag forces and free body diagrams p24-25 What effect will it have on a falling object?

7 Mechanics Physics12 Drag forces and free body diagrams Key words you should now recognise... Homework: Read through and answer questions on p26, 27

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