Kinematic Equations

Kinematic equations to memorize and circumstances when to use; kinematic equations are only applicable when acceleration is constant.

Equation 1) Velocity as a function of time

V_f = V_i + at

Equation 2) displacement w. time + velocity

d = v_i t + 1/2(at²)

Equation 3) displacement as a function of initial + final velocity

d = (( V_i + V_f) t ) / 2

Equation 4) final velocity as a function of displacement

V²_f ⁼ V²_i + 2ad

What equation is used when we know time + acceleration and need to find velocity?

Equation 1; V_f = V_i + at

What equation would we use when solving for displacement and we have initial velocity, acceleration, and time?

d = v_i t + 1/2(at²)

What equation would we use when solving for displacement and have both velocities?

d = (( V_i + V_f) t ) / 2

What equation would we use when solving for final velocity but aren’t given time?

V²_f ⁼ V²_i + 2ad