ME 121 FALL 2004 HOMEWORK ASSIGNMENT 3 - Sept
24, 2004
DUE IN CLASS
FRIDAY, OCTOBER 1, 2004
Problems and Reading Assignments are from DYNAMICS
(3rd ED.), Bedford & Fowler (Prentice Hall, 2002)
GOALS
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Provide working knowledge of the fundamental concepts of
position, velocity, and acceleration in simple engineering systems involving
motion of points in straight lines or curved paths.
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Working knowledge of velocity and acceleration in rectangular,
normal/tangential, polar components.
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Relate forces and accelerations via Newton's 2nd Law. Application
to particles.
OBJECTIVES
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Special attention to SI units in dynamics (kg, m, s, N).
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Use of acceleration, velocity, position for curvilinear motion.
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VELOCITY & ACCELERATION: Rectangular components; Normal/Tangential
components; Polar components.
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Working knowledge of FREE BODY DIAGRAMS.
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Working knowledge of NEWTON'S SECOND LAW for particles moving
in rectilinear (straight) or curvilinear (curved) paths.
Reading assignment
Chapter 14 (Force, Mass, and Acceleration): Sections 14.1
through 14.4.
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.
Pease
make sure that your problem sets are NEAT and LEGIBLE. The graders will
take off or award extra points for poor or professional presentations.
Basic guidelines
for the PROFESSIONAL presentation of your homework:
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Solve each problem on a different page.
Number each problem, i.e. 1) Problem 12.15, etc.
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Write your name on first page you turn
in, your initials on all other pages.
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On front page write "ME 121, HOMEWORK
No. ____, Due Date ____"
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All pages should be stapled together.
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Surround your final answer(s) in a
box. Make sure you indicate appropriate units.
Problems
1. Problem 14.6
2. Problem 14.19
3. Problem 14.20
4. Problem 14.36
5. Problem 14.71
6. Problem 14.85
7. Problem 14.91
8. Problem 14.107