Содержание
- 2. 1. Statics: Recall Conditions of Equilibrium For an object to be static, two conditions must be
- 3. Static Equilibrium Examples
- 4. Static Equilibrium Examples
- 5. Example 1: A beam AB of length 5.00 m, weight 200 N is supported horizontally by
- 6. 2. Stability and Toppling
- 7. Example 2: Stability and toppling A 40.0 x 50.0 cm block sits on a rough plane.
- 8. 3. Friction Friction plays a dual role in our lives: Impedes motion of objects, causes abrasion
- 9. Where points of contact cause very high pressure, temporary bonding occurs. To slide the brick horizontally,
- 10. 3.2. Measuring Frictional Force Experimentally, it is found that the limiting frictional force, Ff is proportional
- 11. 4. Coefficient of friction, μ You must distinguish between the coefficient of sliding (kinetic) friction μk
- 12. 4.1. Static vs. Kinetic Forces of Friction
- 13. 4.2. Frictional Force does Work Friction does work: W = Ff d cosθ This energy becomes
- 14. Example 3: A box of 2.00 kg sits on a rough slope. If μs = 0.200
- 15. Example 4: Ladder Problem A uniform 6.00 m long ladder of 10.0 kg leans against a
- 16. Example 5: Find the: a) Tension in each cable; b) Reaction force of the hinge acting
- 17. CHECK LIST and READING READING : Serway - Section 4.6 , Examples 4.8, 4.9 (pages 77-78)
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