# Sg4 - PH 1110 STUDY GUIDE 4 Equilibrium Angular Kinematics and Dynamics Objectives 25 Define torque Solve problems involving objects in static

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PH 1110 Term A010 STUDY GUIDE 4: Equilibrium, Angular Kinematics, and Dynamics Objectives 25. Define torque. Solve problems involving objects in static equilibrium. 26. Define angular displacement, angular velocity and angular acceleration. Given the graph or the functional form of one of the quantities versus time, determine the graphs of the other two. Describe in words and equations the motion from an analysis of one or more of the graphs. 27. Define moment of inertia, and solve problems involving rotational motion of rigid bodies subject to a net torque. 28. Calculate the angular momentum, relative to a specified axis, of a point mass traveling in a straight line. 29. Calculate the angular momentum of a rigid body whose angular velocity is specified. 30. Solve problems using the law of conservation of angular momentum. Suggested Study Procedure for Chapter 11. Study Sec. 10.1 first; then Study Secs. 11.1 through 11.3. Study Example 10.1, and then Examples 11.1 through 11.4. Answer Discussion Questions 2, 9, 11, 12 in Chapt. 11. Do Exercises 10.1, 10.3, and then Exercises 11.5, 11.13, 11.15, 11.19. Do Problems 49, 59, 65, 67, 73 in Chapt. 11. A. So far we've ignored ONE LITTLE DETAIL about motion: that objects can ROTATE as well as TRANSLATE. We'll TURN to that little detail in this last section of the course. Perhaps you will be happy to hear that we don't really need any new theory for this. We just need to recast all of the old familiar ideas into angular terms. That's one of the things we'll be illustrating and emphasizing a lot in lecture and conference meetings. B. We think that it is preferable to consider STATIC EQUILIBRIUM first before letting objects experience angular acceleration, so we're going to deviate just a bit from the order of topics in the text, first by studying Sec. 10.1 (for the definition of torque ), and then by skipping to Secs. 11.1 through 11.3 (for the application of torque to static equilibrium situations). Note that the Problem-Solving Strategy on p. 359 applies to ALL of the work covered in Sec. 11.3. About all that changes from one problem to the next is the geometry of the situation! This is what takes some practice. Suggested Study Procedure for Chapter 9. Study Secs. 9.1 through 9.4. Study the first nine Examples in Chapt. 9, Examples 1 through 9. Answer Discussion Questions 3, 4, 6, 7, 10. Do Exercises 1, 7, 9, 13, 19, 23, 25, 39, 47. Do Problems 83, 85, 87, 89. A. As you study Secs. 9.1 through 9.4, keep in mind that ALL of the equations for rotational motion with constant angular acceleration are identical in form to those of one dimensional motion with constant

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linear acceleration. Table 9.1 is intended to help you learn the new set of angular symbols and to see how they are interrelated in constant acceleration situations. B. MOMENT OF INERTIA plays a role in rotational motion similar to that of MASS in translational
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## This note was uploaded on 10/25/2010 for the course PH 1110 taught by Professor Kiel during the Fall '08 term at WPI.

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Sg4 - PH 1110 STUDY GUIDE 4 Equilibrium Angular Kinematics and Dynamics Objectives 25 Define torque Solve problems involving objects in static

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