Oberlin College Physics 110, Fall 2011
Model Solutions to Assignment 6
HRW problem 15-4: Car on a spring
k
with f = 3.00 Hz and m = 1450 kg/4:
m
a. Use = 2f =
k = m(2f )2 = 1.29 105 N/m.
b. Increase m
Oberlin College Physics 110, Fall 2011
Assignment 5
Wednesday, 5 October
Reading: From the Notes on Mechanics and Relativity, read sections 2.8
(The Horse and the Sled), 2.9 (Newtons Third Law), and 2
Oberlin College Physics 110, Fall 2011
Model Solutions to Assignment 3
HRW exercise 316: Vector gymnastics
(a) a + b = (8.0 m) + (2.0 m)
i
j
(b) magnitude = (8.0 m)2 + (2.0 m)2 = 8.2 m
(c) angle = ar
Oberlin College Physics 110, Fall 2011
Model Solutions to Assignment 2
HRW problem 26: Bicycle speed record
average speed =
so Hubers speed was
distance traveled
,
time elapsed
200.0 m
= 30.73 m/s = 1
Oberlin College Physics 110, Fall 2011
Assignment 1
Wednesday, 7 September
Reading: By Monday, read the textbook by Halliday, Resnick, and Walker (HRW), chapter 1 (Measurement). Pay particular attenti
Oberlin College Physics 110, Fall 2011
Assignment 2
Wednesday, 14 September
Reading: Concerning problem solving: From the course website, read the links on Study tips for introductory physics students
Oberlin College Physics 110, Fall 2011
Model Solutions to Assignment 1
Additional problem 1: Weighting light things with a heavy standard
Make a blob of clay that balances the standard.
Cut the clay a
Oberlin College Physics 110, Fall 2011
Model Solutions to Assignment 4
Additional problem 56: A girl, a sled, and an ice-covered lake
geometry diagram:
girl
rope
sled
shore
ice
free body diagrams:
for
Oberlin College Physics 110, Fall 2011
Model Solutions to Assignment 7
HRW problem 713: Luge.
Im going to solve this problem in a dierent sequence from the one suggested in the book, because I nd
this
Oberlin College Physics 110, Fall 2011
Model Solutions to Sample Exam 1
Additional problem 11: Watersheds.
(a.) The Black River watershed is twice the size of the Vermilion River watershed. The two wa
Oberlin College Physics 110, Fall 2011
Assignment 7
Wednesday, 19 October
Fall break is here at last! I recommend that you relax, avoid your studies,
refresh yourself, and come back invigorated to wor
Oberlin College Physics 110, Fall 2011
Assignment 4
Wednesday, 28 September
Reading: Read HRW chapter 6 (Force and motion, part II), concerning
various kinds of force. This is nice stu and it will cle
Oberlin College Physics 110, Fall 2011
Assignment 3
Wednesday, 21 September
Reading: HRW chapter 5 (Force and motion, part I). This is the most important chapter of the book, and every section demands
Oberlin College Physics 110, Fall 2011
Final Exam Information
Wednesday, 7 December
Workshops: The WednesdayThursday workshop for this week will be the
free-wheeling lab. There are no pre-lab question
Oberlin College Physics 110, Fall 2011
Assignment 6
Wednesday, 12 October
Reading: For some necessary mathematical background, read HRW pages 47
to 49 on the scalar dot product (stop at the end of the