Содержание
- 2. Lecture 4 Rotation of rigid bodies. Angular momentum and torque. Properties of fluids.
- 3. Rotation of Rigid Bodies in General case When a rigid object is rotating about a fixed
- 4. Radians
- 5. Angular kinematics Angular displacement: Instantaneous angular speed: Instantaneous angular acceleration:
- 6. Angular and linear quantities Every particle of the object moves in a circle whose center is
- 7. Total linear acceleration Tangential acceleration is perpendicular to the centripetal one, so the magnitude of total
- 8. Angular velocity Angular velocity is a vector. The right hand rule is applied: If the fingers
- 9. Rotational Kinetic Energy Moment of rotational inertia Rotational kinetic energy
- 10. Calculations of Moments of Inertia
- 11. Uniform Thin Hoop
- 12. Uniform Rigid Rod
- 13. Uniform Solid Cylinder
- 14. Moments of Inertia of Homogeneous Rigid Objects with Different Geometries
- 16. Parallel-axis theorem Suppose the moment of inertia about an axis through the center of mass of
- 18. Torque When a force is exerted on a rigid object pivoted about an axis, the object
- 19. The force F has a greater rotating tendency about axis O as F increases and as
- 20. The force F1 tends to rotate the object counterclockwise about O, and F2 tends to rotate
- 21. Torque is not Force Torque is not Work Torque should not be confused with force. Forces
- 22. Rotational Dynamics Let’s add which equals zero, as and are parallel. Then: So we get
- 23. Rotational analogue of Newton’s second law Quantity L is an instantaneous angular momentum. The torque acting
- 24. Net External Torque The net external torque acting on a system about some axis passing through
- 25. Angular Momentum of a Rotating Rigid Object Angular momentum for each particle of an object: Angular
- 26. Angular acceleration
- 27. The Law of Angular Momentum Conservation The total angular momentum of a system is constant if
- 28. Change in internal structure of a rotating body can result in change of its angular velocity.
- 29. When a rotating skater pulls his hands towards his body he spins faster.
- 30. Three Laws of Conservation for an Isolated System Full mechanical energy, linear momentum and angular momentum
- 31. Work-Kinetic Theory for Rotations Similarly to linear motion:
- 32. The net work done by external forces in rotating a symmetric rigid object about a fixed
- 33. Equations for Rotational and Linear Motions
- 34. Independent Study for IHW2 Vector multiplication (through their components i,j,k).Right-hand rule of Vector multiplication. Elasticity Demonstrate
- 35. Fluids Define absolute pressure, gauge pressure, and atmospheric pressure, and demonstrate by examples your understanding of
- 36. Literature to Independent Study Lecture on Physics Summary by Umarov. (Intranet) Fishbane Physics for Scientists… (Intranet)
- 38. Скачать презентацию