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# Free Body Diagrams

Free Body Diagrams. A book is at rest on a table top. A book is at rest on a table top. F W. A book is at rest on a table top. F N. F W. F W = F N. The same book is being pushed at a constant rate to the left. The same book is being pushed at a constant rate to the left. F W.

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## Free Body Diagrams

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### Presentation Transcript

1. Free Body Diagrams

2. A book is at rest on a table top.

3. A book is at rest on a table top. FN FW FW = FN

4. The same book is being pushed at a constant rate to the left. FN FW FW = FN

5. The same book is being pushed at a constant rate to the left. FN FA FW FW = FN

6. The same book is being pushed at a constant rate to the left. FN FA FF FW FA= FF and FW = FN

7. The same book is now being accelerated to the left. FN FA FF FW FA> FF and FW = FN

8. A bucket is being raised at a constant rate.

9. A bucket is being raised at a constant rate. FT Force of tension FW FT = FW

10. A bucket is now being accelerated upward. FT Force of tension FW FT > FW

11. A bucket is now being accelerated downward. FT Force of tension FW FT > FW

12. A bucket is now being accelerated downward. FT Force of tension FW FT < FW

13. A box is being pulled at an angle at a constant rate of speed Fv FA Fh FW

14. A box is being pulled at an angle at a constant rate of speed Fv FA Ff Fh FW F h = Ff

15. A box is being pulled at an angle at a constant rate of speed Fv FN FA Ff Fh FW Fh = Ff FN = FW – Fv or FN< FW

16. Forces on an Inclined Plane, sliding down Ff FII θ Fw

17. Forces on an Inclined Plane, sliding down Ff FII F ⊥ θ Fw

18. Forces on an Inclined Plane, sliding down Ff FII F ⊥ θ Fw FII

19. Equal Angle “Sign” θ θ Fw

20. Equal Angle “Sign” θ θ Ft 2 Ft 1 Fw

21. Equal Angle “Sign” θ θ Fv2 Fv1 Ft 2 Ft 1 Fw

22. Equal Angle “Sign” θ θ Fv2 Fv1 Ft 2 Fv2’ Ft 1 Fv1’ Fw

23. Equal Angle “Sign” θ θ Fv2 Fv1 Ft 2 Fv2’ Ft 1 Fv1’ Fh 1 Fh 2 Fw

24. “The Crane” θ Fw

25. “The Crane” Ft θ Fw

26. “The Crane” Ft θ Fv Fw

27. “The Crane” Ft θ Fv Fc Fh Fw

28. “The Crane” Ft Fv’ θ Fv Fc’ Fc Fh Fw

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