Physics - Mechanics - Kinematics - Equations of motion - The Three Equations of Motion

A 6-step lesson. Step 1: 'The 3 equations of motion apply when acceleration is CONSTANT (uniform)'. Define variables: u = initial velocity, v = final velocity, a = acceleration, t = time, s = displacement. Step 2: 'Equation 1: v = u + at' - Derivation from a = (v-u)/t. Example: u=5 m/s, a=3 m/s², t=