Prof. Oleg Shpyrko
Mayer Hall 3210
You may think you understand it,
but just wait till
I explained it to you
Oleg Shpyrko, Oct 2, 2014
Welcome to Physics 2A!
Physics 2 is a four quart
We live in a Newtonian world of
Einstenian physics ruled by
Uniform Circular Motion
When acceleration is always perpendicular to
velocity, then only the direction of velocity
changes and not the magn
A small rock holds back a great wave.
There are two main types of equilibrium: stable
To examine each we must turn back to potential
Recall that we can relate the force to the
All good things must come to an end.
Things We Have Learned
1. Math Techniques and Problem Solving:
Know how to pick an appropriate coordinate
Know how to use dimensional analysis and
proper unit conversion.
You spin me right round, baby
Right round like a record, baby
Right round round round
- Dead Or Alive
You Spin Me Right 'Round (Like a Record)
Now, lets say you wanted to know how fast
you would travel linearly is
Energy is eternal delight.
A box lies on an inclined plane at an angle of
30.0o to the horizontal plane. The mass of
the box is 5.00kg. What is value of the
coefcient of static friction if it is n
We live in a society exquisitely dependent on
science and technology, in which hardly anyone
knows anything about science and technology.
- Carl Sagan
A rigid body has parts held in a xed position
with respect to other pa
Life is like riding a bicycle.
To keep your balance, you must keep moving.
- Albert Einstein
Just like collisions, explosions will also conserve
momentum (as long as we dene our system
Lets say that we have a bo
The test of a first-rate intelligence is
the ability to hold two opposed ideas
in mind at the same time and still
retain the ability to function.
F. Scott Fitzgerald
For a mass near the surface of the Earth:
I shall now recall to mind that the motion of the heavenly
bodies is circular, since the motion appropriate to a sphere is
rotation in a circle.
- Nicolaus Copernicus
Lecture on Tuesday (today)
.our impulses are too strong for our
When applying a force to an object to change
its motion, the time in which the force is
applied is important in determining the end
The sun rises. In that short phrase, in a
single fact, is enough information to keep
biology, physics, and philosophy busy for
the rest of time.
Center of Mass
Up until now, we have had to deal with simple
Energy is eternal delight.
What is energy?
What are some different forms of energy?
Chemical (Molecular Bonds)
Mass energy (E = mc2)
"We live in a Newtonian world of Einsteinian
physics ruled by Frankenstein logic.
In the books notation, they use v as the
velocity of an object with respect to some
reference frame, S.
Then, they suppo
"Mathematics is the door and the key to
Another way to examine constant
acceleration problems is do it graphically.
This relies on the fact that:
1) The slope of position is velocity.