ACCELERATION
WHAT DO WE DO WHEN MOTION LOOKS LIKE THIS?
Velocity is NOT constant!
What does this mean is happening?
ACCELERATION
…a change in velocity
NEW VARIABLES
avf
vi
v
KINEMATIC EQUATIONS
∆x = vi∆t + ½a(∆t)2
a =
PRACTICE #1
A car slows from 22m/s to 3.0 m/s at a constant rate of 2.1 m/s2. How many seconds are required before the car is traveling at 3.0 m/s?
PRACTICE #2
A student is leaving the CHS parking lot after school. He starts his car and accelerates uniformly for 5.32 seconds over a distance of 195 m (it is Friday afternoon). What is the acceleration of the sports car?
KINEMATICS PROBLEMS
STACKS OF CURVES WORKSHEET
START FREE FALL HERE
WYLIE E. COYOTE
P/T
Ball Toss Lab Graphs
V/T
GRAPHS FOR DROPPED OBJECT
FREE FALL
Definition?Only force acting is gravityUp and down
Forces cause acceleration
ACCELERATION DUE TO GRAVITY
Same for all objectsDoes not depend on mass, heightIgnore air resistance- 9.8 m/s2
Why negative?
FREE FALL PROBLEMS
Up is positive, so down is negative
Same tools (replace “a” with “g” in equations)
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