### Chapter 8, “Motion in One Dimension”

#### Displacement with Constant Velocity

displacement = velocity * time (D = v * t)

for any constant velocity v.

#### Displacement Between Frames

new_position = old_position + velocity * time

where time is one frame (usually of a second).

#### Average Velocity

for any displacement Δx and time interval t.

#### Acceleration

#### Equation 1

v_{f} = v_{i} + at

#### Equation 2

for constant acceleration only.

#### Equation 3

Δx = ½(v_{i} + v_{f})t

#### Equation 4