AP_Physics_B_-_Kinematics

AP_Physics_B_-_Kinematics - Kinematics AP Physics B...

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    Kinematics AP Physics B
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Defining the important variables Kinematics is a way of describing the motion of objects without describing the causes. You can describe an object’s motion: In words Mathematically Pictorially Graphically No matter HOW we describe the motion, there are several KEY VARIABLES that we use. Symbol Variable Units t Time s a Acceleration m/s/s x or y Displacement m v o Initial velocity m/s v Final velocity m/s g or a g Acceleration due to gravity m/s/s
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The 3 Kinematic equations  There are 3 major kinematic equations than can be used to describe the motion in DETAIL. All are used when the acceleration is CONSTANT. ) ( 2 2 1 2 2 2 o o o o o x x a v v at t v x x at v v - + = + + = + =
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Kinematic #1 at v v at v v t v v t v a o o o + = = - - =
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Kinematic #1 Example: A boat moves slowly out of a marina (so as to not leave a wake) with a speed of 1.50 m/s. As soon as it passes the breakwater, leaving the marina, it throttles up and accelerates at 2.40 m/s/s . What do I
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AP_Physics_B_-_Kinematics - Kinematics AP Physics B...

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