# ch03 - Chapter 3 Kinematics in Two Dimensions 3.1...

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Kinematics in Two Dimensions Chapter 3

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3.1 Displacement, Velocity, and Acceleration position initial = o r position final = r nt displaceme = - = o r r r
3.1 Displacement, Velocity, and Acceleration t t t o o = - - = r r r v Average velocity is the displacement divided by the elapsed time.

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3.1 Displacement, Velocity, and Acceleration The instantaneous velocity indicates how fast the car moves and the direction of motion at each instant of time. t t = r v 0 lim
3.1 Displacement, Velocity, and Acceleration t t = r v 0 lim

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3.1 Displacement, Velocity, and Acceleration t t t o o = - - = v v v a DEFINITION OF AVERAGE ACCELERATION o v v v
3.2 Equations of Kinematics in Two Dimensions Equations of Kinematics ( 29 t v v x o + = 2 1 2 2 1 at t v x o + = at v v o + = ax v v o 2 2 2 + =

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3.2 Equations of Kinematics in Two Dimensions t a v v x ox x + = ( 29 t v v x x ox + = 2 1 x a v v x ox x 2 2 2 + = 2 2 1 t a t v x x ox + =
3.2 Equations of Kinematics in Two Dimensions t a v v y oy y + = 2 2 1 t a t v y y oy + = ( 29 t v v y y oy + = 2 1 y a v v y oy y 2 2 2 + =

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3.2 Equations of Kinematics in Two Dimensions The x part of the motion occurs exactly as it would if the y part did not occur at all, and vice versa.
Equations of Kinematics in Two Dimensions Example 1 A Moving Spacecraft In the x direction, the spacecraft has an initial velocity component of +22 m/s and an acceleration of +24 m/s 2 . In the y direction, the analogous quantities are +14 m/s and an acceleration of +12 m/s 2 . Find (a)

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## This note was uploaded on 02/20/2010 for the course PHYSC 210 taught by Professor Uscinski during the Summer '09 term at American.

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ch03 - Chapter 3 Kinematics in Two Dimensions 3.1...

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