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Formula for Average Acceleration

Average acceleration = change in velocity / change in time

Change in Velocity equals

Velocity of final  Velocity of initial

Acceleration due to Gravity equals

9.80m/s^2

formula for Velocity with constant Acceleration

Vinitial^2 = Vinitial^2 + 2a(dfinaldinitial)

formula to find the displacement of an object moving with constant acceleration

dfinal = dinitial + (Vinitial x time) + 1/2a (t^2)

formula to fund the displacement of a free falling object

dfinal = dinitial + (Vinitial x time) + 1/2 (9.8 m/s^2)(t^2)

found by drawing a tangent line on the velocitytime graph at a selected point
= the slope 
instantaneous acceleration

the rate at which an object's velocity changes

acceleration

change in velocity during some measurable time interval divided by that time interval

average acceleration

the motion of a body when air resistance is negligible and action can be considered doue to gravity alone

free fall
