UNIT 2 notes.docx

UNIT 2 notes.docx

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UNIT 2: MECHANICS 2.01 Motion & Graphs Kinematics: study of motion (without forces) Dynamics: study of forces Mechanics: study of kinematics and dynamics - velocity = displacement / time - acceleration = velocity / time 2.02 Kinematic Equations The BIG 5 2.03 Displacement in 2-D Velocity = displacement / time Use component vectors “i” and “j” 2.04 Velocity & Acceleration in 2-D Acceleration = velocity / time Use the vector equation ( v 1 ∆ v = v 2 + ¿ )) 2.05 Projectile Motion 1 body problems broken into horizontal uniform velocity and vertical uniform acceleration components Time to use the BIG 5! Horizontal (x): d = v ∆t Vertical (y): d = v 1 ∆t + 1/2a ∆t 2 2.06 Relative Motion Only inertial FoR used (constant velocity – i.e. no acceleration)

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