ME 121 FALL 2004 HOMEWORK ASSIGNMENT 10 - Nov 24, 2004

Problems and Reading Assignments are from DYNAMICS (3rd ED.), Bedford & Fowler (Prentice Hall, 2002)

GOALS

• Provide working knowledge of rigid body (RB) planar dynamics, in terms of translation of CM and rotation about CM.
• Use of energy methods in rigid body motion.
• Use of momentum methods in rigid body motion.
• Motion of a RB about a fixed axis vs. general planar motion.
• Combination of energy, momentum, and force methods to solve more complex problems in engineering systems.

• Special attention to SI units in dynamics (kg, m, s, N).
• Use of energy methods. Work-energy principle. Conservation of energy.
• Use of linear and angular momentum methods in planar dynamics.
• Analysis of simple impact problems.
• Combination of energy/force/momentum methods to solve more complex problems.
• Force method: Separate FBD & ACCELD diagrams.

Reading assignment

Chapter 19 (Energy and Momentum in Rigid Body Motion): Sections 19.1 to 19.6.
Make sure you study especially carefully ALL the solved examples.
If you want additional practice, note that even-numbered problems have answers in back of book.

Problems

1.   Problem 18.129

2.   Problem 18.130

3.   Problem 19.13

4.   Problem 19.22

5.   Problem 19.32

6.   Problem 19.45

7.   Problem 19.55

8.    Problem 19.68

9.   Problem 19.117

10.   Problem 19.119