Announcements
Tutoring hours for CAPE center posted on CAPE
webpage for Phys, Math, writing, etc. courses
http://www.njit.edu/cape/
Workshops available to help you with study
techniques, managing stress, preparing for
common exams, etc.
http://www.njit.edu/cape/Workshops/index.php
1
Tutoring Help for Phys 111
• Listed on course web page
Tutoring through the Physics Department is available
according to the schedule below
TA: Phil Lo, pyl3@njit.edu
FRIDAYS 11:30-2:30pm ROOM 409 Tiernan
MONDAYS 2:30-5:30pm Room 409 Tiernan EXCEPT weeks
that we have common exams. For the weeks that we have
common exams, instead of Monday (when we have the
exam), tutoring will be available the Saturday BEFORE the
exam from noon-3pm, also in Room 409Tiernan.
Common Exam 1
• TODAY’s material WILL BE on the common exam.
How will you spend your Summer?
Consider performing research at a National Science
Foundation (NSF) sponsored Research Experience for
Undergraduates (REU) site.
•
Ask in your department who has NSF funding. The
faculty member can request Summer funds for students
so that you can work at NJIT.
• Go to the national REU site and spend the Summer in
California, Florida, Michigan, Maryland, New Mexico, etc.
http://www.nsf.gov/crssprgm/reu/reu_search.cfm
Due dates in March. Typically sophomores to juniors
are accepted. Start thinking about your Summer
plans NOW!
How will you spend your Summer?
Consider performing research at NJIT over the Summer
http://www.njit.edu/provost/events/undergrad_research.php
Due dates Friday, April 4th, 2014.
I am looking for students with experience with the
RASBERRY PI computer, ANDROID Applications, for a
project to interface 16 different cameras with a
computer or smart phone.
IF YOU HAVE EXPERIENCE IN these areas, contact me
federici@njit.edu
Iclicker Question #1
In the recent movie Inception starring Leonardo DiCapri (playing
“Cobb”), what allows the laws of physics to be violated?
A)
B)
C)
D)
E)
Robots invade our minds and program our thoughts
An anti-gravity machine
The laws of physics are shown to be invalid.
Its all a dream
We are all in the Matrix, so it really doesn’t matter does it?
Iclicker Question #1
In the recent movie Inception starring Leonardo DiCapri (playing
“Cobb”), what allows the laws of physics to be violated?
A)
B)
C)
D)
E) We are all in the Matrix, so it really doesn’t matter does it?
Federici’s Rule of Physics #1
Cartoons do not teach you proper physics.
http://www.lghs.net/ourpages/users/dburns/RRPhysics/
Road_Runner_Physics/Movie.html
http://www.youtube.com/watch?v=3PzY_ro13UE
Bugs Bunny Gravity
Position is now a vector
r  x iˆ  y ˆj  z kˆ
Instantaneous Velocity is TANGENT to
particle path
Parallel and Perpendicular Acceleration
Parallel and Perpendicular Acceleration
Iclicker Question #2
Which of the following choices of coordinate systems would be best if
the acceleration a is varying in magnitude, but constant in direction?
A) B)
C)
D)
E)It doesn’t really matter, because I am dreaming….
y
x
A)
B)
C)
D)
Projectile Motion
Iclicker Question #3
which of the following statements is FALSE concerning the projectile
motion illustrated in the figure?
A) At the peak height of the projectile motion, the magnitude of the
velocity is zero
B) At the peak height of the projectile motion, the particle is travelling
parallel to the ground
C) The height of the projectile when it hits the ground is zero.
D) The velocity of the projectile when it hits the ground is the same as
when it is launched.
E) In order to hit a particular range, the required magnitude of launch
velocity and launch angle are not unique.
y
Vo

x
If projectile is launched just as target
drops, the projectile still hits target… target
and projectile fall at same rate.
Federici’s Rule of Physics #1
Cartoons do not teach you proper physics.
Federici’s Rule of Physics #2
You can learn proper physics by playing video games or
by watching science fiction movies.
http://www.youtube.com/watch?v=k9Nh0Fvoe9k
The Matrix, Jump Program
http://www.youtube.com/watch?v=9o8M4tLcU1g
Halo physics engine – 1:00 to 1:25 and 1:36- 1:34
Iclicker Question #4
In what direction is the acceleration for uniform circular motion?
A)
B)
C)
D)
E)
Tangent to the circle
Anti-parallel to the velocity
Pointing away from the center of the circle
Towards the center of the circle
None of the above
Non-uniform circular motion
Rollercoaster –
Combination of
circular motion with
gravity
Relative Velocities
Flying in a Cross Breeze