PHYS 2101

1
PHYS 2101
Fall 2009

• Introduction to the course
• Chapter 1 in 90 seconds
• Setting up NSL problems
• Vectors
• Newtons Second Law

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PHYS 2101
Fall 2009
Instructor Raymond Chastain Office 368
Nicholson Hall Email chastain_at_phys.lsu.edu Tele
phone [phone] Office Hours MWF, 940 AM
- 1030 AM, MWF, 1140 AM
- 1230 PM, or by
appointment
Course Website http//www.phys.lsu.edu/class
es/fall2009/phys2101/
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PHYS 2101
Fall 2009
Required Text Fundamentals of Physics, by
Halliday, Resnick, and Walker, custom 8th ed.
The custom edition only contains material
relevant to Physics 1100 and 2101. However, it
comes bundled with a WebAssign access code, which
you will need for the homework assignments. You
can also use the regular edition, which contains
all the chapters needed for Physics 2101 and
2102, but the regular edition does not come with
WebAssign access, which you will need to purchase
separately.

• Course
• This course begins with a review of chapters 1
  6 in the first two weeks of class. It is
  expected that you understand the first six
  chapters of the textbook prior to your enrolling
  in PHYS 2101. As a result, the pace of the
  review will be intense.
• After the first two weeks the course assumes a
  more normal pace and will cover most of the
  section contained in chapters 7 20, with the
  exception of chapters 17, which will be skipped.
  The specific sections covered are outlined in the
  syllabus.
• You are expected to have read the material in the
  book before coming to class.

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PHYS 2101
Fall 2009
Exams There will be four 1-hour exams and a
final exam. The four 1-hour exams will be
administered from 6-7 PM in Lockett 2
EXAM 1 - Tuesday, Sept 8, 6 - 7 PM, Lockett 2
(Ch 1-6) EXAM 2 - Tuesday, Sept 29, 6 - 7
PM, Lockett 2 (Ch 7-9) EXAM 3 - Tuesday,
Oct 27, 6 - 7 PM, Lockett 2 (Ch 10-13)
EXAM 4 - Tuesday, Nov 24, 6 - 7 PM, Lockett 2
(Ch 14-18) FINAL - Tuesday, Dec 8,
1230 - 230 PM, TBA (Ch 1-20) THERE WILL BE
NO SCHEDULED MAKE-UP EXAMS
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PHYS 2101
Fall 2009

• Exams
• The first exam will consist entirely of
  multiple-choice questions. The three regular
  exams will contain a combination of multiple
  choice questions and word problems for which you
  must show your work.
• A formula sheet will be provided and no other
  material is to be used during the exam. Notes,
  books, and crib sheets are strictly forbidden.
  Formula sheets will be posted in advance of the
  exams.
• You will need a scientific calculator graphic
  calculators are fine, but not necessary. No
  computers, beepers, pagers, cellular phones or
  other communication devices are allowed. You may
  not use the calculator within one of these
  devices.

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PHYS 2101
Fall 2009

• Homework
• Homework assignments will be online at
  WebAssign.com
• (Section 1 KEY lsu 7710 2743) (Section 2 KEY
  lsu 9450 0455)
• The due date for each assignment is listed on
  WebAssign and on the course calendar (which is
  posted on the website).
• Complete problem set solutions will not be
  posted. It is your responsibility to make sure
  you find out how to solve the problems on each
  assignment.
• It is essential that you solve the homework
  problems to ensure that you understand the
  concepts and to strengthen your math skills.
  Though you may be able to find solutions for the
  homework problems, using them will NOT help you
  prepare for the exams.
• YOU CANNOT PASS THIS COURSE WITHOUT WORKING THE
  HOMEWORK. The homework provides the practice you
  will need to be able to solve the problems on the
  exams.

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PHYS 2101
Fall 2009
Grading Review Exam 50 pts. Three regular
exams 100 pts. each Final Exam 200 pts. Your
final grade will be based on 550 total
points. A 550-495 pts B 494-440 pts
C 439-330 pts D 329-275 pts F 274-0
pts If your point total is within these ranges,
you are guaranteed the associated letter grade.
In general, there will be no curving of
individual exam grades. It is theoretically
possible for everyone in the class to get an A
(or an F). Your performance depends only on how
you do, not on how everyone else in the class
does. In the end, the grade you earn will be
based on your performance, not you.
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PHYS 2101
Fall 2009
I will not discuss your grade in this class
either through E-mail or over the phone. If you
have a question about your grade, come see me in
person.
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PHYS 2101
Fall 2009

• Tutoring
• If you do not understand the material or you
  experience difficulty in working the problems,
  you have several options for where you can go for
  help.
• Office hours MWF, 940 AM - 1030 AM, 1140
  AM - 1230 PM
• Make an appointment to meet with me.
• Tutoring is available from the graduate tutors in
  Room 102 of Nicholson Hall. This service is
  free. The tutoring schedule is posted outside
  Room 102.
• There will be a supplemental instructor for the
  course (Laurie McNeil, lmcnei2_at_tigers.lsu.edu).
  If you are interested in taking advantage of this
  service, please go to the website below at some
  point today and input your schedule. Meeting
  times will be determined during the first week
  and I will pass those times along.

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PHYS 2101
Fall 2009
Important Dates Monday, August 31 Final
date for dropping courses without receiving a "W"
Wednesday, September 2 Final date for adding
courses for credit and making section
changes Monday, September 7 -- Labor Day
Holiday Thursday Friday, October 1 2 --
Fall Holiday Friday, November 6 Final date for
resigning from the University and/or dropping
courses Final date to request rescheduling a
final examination when three examinations are
scheduled in 24 hours Wednesday, November 25 _at_
1230 PM Thanksgiving holiday begins
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PHYS 2101
Fall 2009
Metric Prefixes (Table 1-2)
tera- T 1012 giga- G 109 mega- M 106 kilo-
k 103 centi- c 10-2 milli- m 10-3 micro- ?
10-6 nano- n 10-9 pico- p 10-12
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PHYS 2101
Fall 2009
A block of mass m1 rests on a rough inclined
plane and is attached to a hanging mass of mass
m2 by a string which is draped over a
frictionless, massless pulley. If the
coefficient of static friction between m1 and the
plane is ?s, under what conditions will the block
slide up the inclined plane?
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PHYS 2101
Fall 2009
CT1

• A ball is dropped from a height of 20 m above the
  ground and falls towards the Earth. What is the
  acceleration of the ball as it falls?
• 1) 9.8 m/s2 2) 9.8 m/s2

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PHYS 2101
Fall 2009
EX1
Calculate A B
A 12 m B 5 m
A ? B
A (? B)
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PHYS 2101
Fall 2009
EX3
EX4
EX2
A block of mass m rests on a frictionless plane
inclined at an angle of ? to the horizontal. The
block is anchored to a wall at the top of the
plane by a rope.
A block of mass m rests on a rough inclined
plane. The plane is inclined at an angle of ? to
the horizontal.
A block of mass m rests on a frictionless
inclined plane. The plane is inclined at an
angle of ? to the horizontal.
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PHYS 2101
Fall 2009
EX5
What is the acceleration of a ball as it falls
towards the ground?
EX6
What is the acceleration of a ball that has been
thrown straight up as it rises towards the apex
of its trajectory?
EX7
What is the acceleration of a ball that has been
thrown straight up as it reaches the highest
point of its trajectory?
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PHYS 2101
Fall 2009
EX8
As the Three Stooges Moving Company slides the
box across the floor, how many forces act on the
box? How many Newtons Second Law equations
describe the situation? What are they?
Curly
Moe
Larry
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PHYS 2101
Fall 2009
EX9
A block of mass m1 rests on a rough inclined
plane and is attached to a hanging mass of mass
m2 by a string which is draped over a
frictionless, massless pulley. If the
coefficient of static friction between m1 and the
plane is ?s, under what conditions will the block
slide up the inclined plane?
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PHYS 2101
Fall 2009
CT1

• Which of the following are true about Dr.
  Chastain?
• He teaches this class.
• He is the snazziest dresser in the physics
  department
• He is one of the funniest people standing at the
  front of the room.
• He is one of the most brilliant people ever named
  Raymond Joseph Chastain
• He spends way too much time creating concept
  tests.
• All of the above.