Acceleration Test

G: given variables, at least 3 variables

U: unknown variable

E: equation

S: set-up to unknown variable

S: solve for unknown variable

graph represents position; dot represents time; bigger space /w dots means faster velocity

rate of change of position

units: m/s

graph: slope on a position v. time graph; steeper when faster

△ displacement / △ time

rate of change of velocity

units: m/s²

graph: slope on a velocity v. time graph; steeper when faster

△ velocity / △ time

if acceleration and velocity have the same signs

change of position

graph: area under velocity v. time graph

constant velocity; a = 0

position graph will show top half of parabola

position graph will show bottom half of parabola

velocity at a specific instant of t

a = -9.8 m/s² ≈ -10 m/s²; always points down

v = v₀ + (a * t)

v² = v₀² + (2a * ∆x)

x = x₀ + (v₀ * ∆t) + 0.5 (a * ∆t²)

use v₀ or v

x = x₀ + (0.5 * (v₁ + v₀) * ∆t)

when line is linear (y = Cx), 2y = 2x