ACCELERATION. WHAT DO WE DO WHEN MOTION LOOKS LIKE THIS?

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Presentation transcript:

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 avfvivavfviv

KINEMATIC EQUATIONS

PRACTICE #1 A car slows from 22m/s to 3.0 m/s at a constant rate of 2.1 m/s 2. 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 gravity  Up and down  Forces cause acceleration

ACCELERATION DUE TO GRAVITY  Same for all objects  Does not depend on mass, height  Ignore air resistance  m/s 2  Why negative?

FREE FALL PROBLEMS  Up is positive, so down is negative  Same tools ( replace “a” with “g” in equations)

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