Physics 125
Discussion #9 Solution
Problem 1: A Carnival Ferris Wheel
A passenger on a carnival Ferris wheel moves in a vertical circle of radius R with
constant speed v. Assume that the seat remains upright during the motion.
(1) Draw the free body diagr
Physics 125
Discussion #13 Solution
Problem 1: Ballistic pendulum
A ballistic pendulum is used to determine the velocity of a projectile. A 10 gram bullet is
fired from a rifle at a speed of 700 m/sec into a 1.50 kg block of a ballistic pendulum
suspended
Physics 125
Discussion #1 Solution
Problem 1: Hiking
A hiker walks 53.1 degrees north of east for 2.5km then due east for 2.0km. What is her
total displacement from her starting point if you measure the distance along a straight
line?
(1) First, define yo
Physics 125
Discussion #5 Solution
Problem 1: Superposition of Forces
Three professional wrestlers are fighting over the same champions belt. As viewed from
above, they apply the three horizontal forces to the belt that are shown in the figure
below, wher
Use the following to answer question 1:
A football is kicked with a speed of 18 m/s at an angle of 65 to the horizontal.
1. How long is the football in the air? Neglect air resistance.
A) 1.1 s
B) 1.6 s
C) 2.0 s
D) 3.3 s
E) 4.0 s
It hits the ground when y
1. Two vectors A and B are added together to form a vector C. The relationship between
the magnitudes of the vectors is given by A + B = C. Which one of the following
statements concerning these vectors is true?
A) A and B must be displacements.
B) A an
PHYS 125 FALL 2006
Exam 1 Solution
Physics 125 Fall 2006: Exam #1 Solution
Form #1
Please print your name:_
Please list your discussion section number:_
Please list your discussion instructor:_
Instructions
Fill in your name above.
Each exam will have a d
PHYS 125 FALL 2006
Exam 1
Physics 125 Fall 2006: Exam #1
Form #1
Please print your name:_
Please list your discussion section number:_
Please list your discussion instructor:_
Instructions
Fill in your name above.
Each exam will have a different version n
Physics 125 Fall 2006
Exam 2 Solution
Physics 125 Fall 2006: Exam #2 Solution
Form #1
Please print your name:_
Please list your discussion section number:_
Please list your discussion instructor:_
Instructions
Fill in your name above.
Each exam will have
PHYSICS 125 FALL 2006
Practice Exam 3 Solution
Physics 125 Fall 2006: Practice Exam #3 Solution
Form #1
Please print your name:_
Please list your discussion section number:_
Please list your discussion instructor:_
Instructions
Fill in your name above.
Ea
PHYSICS 125 FALL 2006
Practice Exam 3
Physics 125 Fall 2006: Practice Exam #3
Form #1
Please print your name:_
Please list your discussion section number:_
Please list your discussion instructor:_
Instructions
Fill in your name above.
Each exam will have
Racquetball Striking a Wall
Physics for the
Life Sciences
Physics
Tools
Lecture #1A
Stewart Hall
Mt. Etna
A quick review of practical matters.
Today well set aside
the big picture and
focus on a few tools
youll need
Mathematics is the
language of physic
Racquetball Striking a Wall
Physics for the
Life Sciences
Physics
Tools
Lecture #1B
Stewart Hall
Mt. Etna
Coordinate System
Cartesian coordinates
RightHand Rule (RHR)
y
x
y
x
z
x
z
z
(a)
OR
y
(b)
j
k
i
Convention
z out of page
z into page
x
z
Robotic
I
H
t 1t
I
4i
P
leA 51i (
F
5
jffl
flD
J2,

o
rc
O,7A/ O,5N

r
ii5
fi.
/o l
iei
1t
Z42S
C,)rlcItA6
rft
prVl
a)
2
LI
x
/x,
ti
$
fL
s
I
fri Iee
F=o
z
II3
5
J/
o

JXLWz
rw
e
(i
.11,
)
ib
Lz cF
&
I
L
75/dC4
Sc
p J
o<
Racquetball Striking a Wall
Introduction to
Physics and Life
Stewart Hall
Physics for the
Life Sciences
Lecture #0B
Mt. Etna
Physics
Physics135
Classical Mechanics
Physics235
Electricity and Magnetism
Large objects: planet, baseball
(size >106 [m])
Quant
Racquetball Striking a Wall
Newtons Laws
Stewart Hall
Physics for the
Life Sciences
Lecture #2A
Mt. Etna
Exams
Midterm Exam #1: Thursday, October 2, 6:00 PM8:00 PM
Midterm Exam #2: Thursday, October 30, 6:00 PM8:00 PM
Midterm Exam #3: Thursday, Novem
Racquetball Striking a Wall
Physics for the
Life Sciences
Physics
Tools
Lecture #1C
Stewart Hall
Mt. Etna
Product of the Components
Definition: (1) W = r F
(2) ! = r F
Example: Given r = 10 [m], F = 50 [N], and = 60, calculate
W and !.
F
r
y
r
r
F
r
x
Welcome to Physics 135
Fall 2014
Dr. Wayne Lau
Grace Glowniak
Timothy Helland
Niraj Patel
Brett Campbell
Racquetball Striking a Wall
How to Succeed
at Physics by
Really Trying
Stewart Hall
Physics for the
Life Sciences
Lecture #0A
Mt. Etna
Physics for the
Racquetball Striking a Wall
Newtons Laws
Stewart Hall
Physics for the
Life Sciences
Lecture #2B
Mt. Etna
Exams
Midterm Exam #1: Thursday, October 2, 6:00 PM8:00 PM
Midterm Exam #2: Thursday, October 30, 6:00 PM8:00 PM
Midterm Exam #3: Thursday, Novem
Racquetball Striking a Wall
Standing Up and
Staying Still
Stewart Hall
Physics for the
Life Sciences
Lecture #3B
Mt. Etna
A Quick Example
If the ceiling supports a person with a mass m = 50 [kg] using a
rope, whats the tension in the rope?
y
Given: mass
Physics 125 Fall 2006
Exam 2
Physics 125 Fall 2006: Exam #2
Form #1
Please print your name:_
Please list your discussion section number:_
Please list your discussion instructor:_
Instructions
Fill in your name above.
Each exam will have a different versio
PHYSICS 125 FALL 2006 FINAL EXAM
Physics 125 Fall 2006: Final Exam
Please print your name:
Please list your discussion section number:
Please list your discussion instructor:
instructions
a Fill in your name above.
 Each exam will have a different
l. A boy is whirling a stone around his head by means of a string. The string makes one
complete revolution every second; and the tension in the string is FT. The boy then
speeds up the stone, keeping the radius of the circle unchanged, so that the string
Physics 125
Discussion #7 Solution
Problem 1: Rounding a Flat Curve
A BMW Z4 roadster is rounding a flat, unbanked curve with radius R. The coefficient of
friction between the tires and road is s.
(1) Define your coordinate system and draw the freebody d
Physics 125
Discussion #6 Solution
Problem 1: Friction in Horizontal Motion
A delivery company has just unloaded a 500N crate full of home exercise equipment in
your driveway. You find that to get it started moving toward your garage, you have to
pull wi