CHAPTER 2
DESCRBING MOTION : KINEMATICS IN 1D

2-1
REFERENCE FRAMES & DISPLACEMENT

2-7 FREE FALLING OBJECTS

2-5
MOTION AT CONSTANT ACCELERATION

2-3 INSTANTANEOUS VELOCITY

2-2 AVERAGE VELOCITY

2-9 GRAPHICAL ANALYSIS & NUMERICAL INTEGRATION

2-8 VARIABLE ACCELERATION; INTEGRAL CALCULUS

2-6 SOLVING PROBLEMS

2-4 ACCELERATION

DISPLACEMENT : how far the obejct is from starting point, regardless of how it got there.

DISTANCE : Traveled is measured along the actual path.

AVERAGE SPEED, V = [distance travelled (x)] / [time elapsed (t)]

Δx= x2-x1

AVERAGE VELOCITY , v ˉ = Δx / Δ t

v = dx / dt

AVERAGE ACCELERATION, Aavg : Δv / Δt

x = xo + ut + 1/2 (at^2)

v^2 = u^2 + 2as

v = u + at

v ˉ = ( u + v ) / 2

x = xo + ut - 1/2 (gt^2)

v^2 = u^2 - 2gs

v = u - at

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The total displacement of an object can be described as the area under the v-t curve : image image