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ACCELERATION. WHAT DO WE DO WHEN MOTION LOOKS LIKE THIS?
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Transcript of ACCELERATION. WHAT DO WE DO WHEN MOTION LOOKS LIKE THIS?
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ACCELERATION
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WHAT DO WE DO WHEN MOTION LOOKS LIKE THIS?
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Velocity is NOT constant!
What does this mean is happening?
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ACCELERATION
…a change in velocity
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NEW VARIABLES
avf
vi
v
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KINEMATIC EQUATIONS
∆x = vi∆t + ½a(∆t)2
a =
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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?
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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?
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KINEMATICS PROBLEMS
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STACKS OF CURVES WORKSHEET
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START FREE FALL HERE
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WYLIE E. COYOTE
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P/T
Ball Toss Lab Graphs
V/T
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GRAPHS FOR DROPPED OBJECT
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FREE FALL
Definition?Only force acting is gravityUp and down
Forces cause acceleration
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ACCELERATION DUE TO GRAVITY
Same for all objectsDoes not depend on mass, heightIgnore air resistance- 9.8 m/s2
Why negative?
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FREE FALL PROBLEMS
Up is positive, so down is negative
Same tools (replace “a” with “g” in equations)