Friday, August 26, 2016
9:18 AM
Instantaneous Velocity: The slope at a single point on a position vs time graph
Instantaneous Speed: The absolute value of the slope (speed is the magnitude of velocity
Vectors
Wednesday, August 31, 2016
9:23 AM
Consider throwing a ball into the air
ball leaves hand at (t =0)
origin
It starts at
What are the kinematic equations that describe this motion?
Gravity make
Kinematics in One Dimension
Wednesday, August 24, 2016
9:29 AM
Kinematics : Describes how things move
Position: Location (where things are)
-Always relative to something
-As it relates to an origin
-D
Wednesday, September 14, 2016
9:25 AM
Relative Motion
What an observer sees
= Velocity seen by observer A
= Velocity seen by observer B
= Velocity of observer B (according to A)
Treat A as not moving
Wednesday, September 7, 2016
9:20 AM
Vector components: Splitting a vector into multiple vectors where new vectors are only in directions we agree upon
= Cartesian
Ex) An asteroid is drifting in space
Physics - What is it?
Monday, August 22, 2016
10:08 AM
Greek word meaning "knowledge of nature"
The study of matter and its motion in space and time
The general analysis of nature, conducted to gai
Integrals
Monday, August 29, 2016
9:18 AM
If you know everything about x(t) then you know everything about v(t) and a(t)
Include V but don't change the expression
the smaller
is, the more accurate the
Friday, September 9, 2016
9:59 AM
Uniform Circular Motion:
Motion along a circular path with constant speed
Every Point is distance R from center
Position on circle:
will change with time.
It depends
Monday, September 12, 2016
9:19 AM
Consider a jet plane
Y (North)
X (East)
A safe turn is about
(Mag of acceleration)
How large is the radius of the turn in order to keep it safe?
To Find R:
(because
Kinematics in 2D and 3D
Friday, September 2, 2016
9:26 AM
Any vector can be built by adding other vectors
= vector only in the x-direction
= vector only in the y-direction
Unit vector: A vector with m