# Acceleration

Written by Jerry Ratzlaff. Posted in Fluid Mechanics

Acceleration is the rate of change of velocity. Whenever a mass experiences a force, an acceleration is acting.

## FORMULA

$$a = \frac {\Delta v} {\Delta t}$$

$$a = \frac {v_f - v_i} {t_f - t_i}$$

Where:

$$a$$ = acceleration

$$\Delta v$$ = velocity differential

$$v_t$$ = final velocity

$$v_i$$ = initial velocity

$$\Delta t$$ = time differential

$$t_t$$ = final time

$$t_i$$ = initial time

Solve for:

$$v = v_i + at$$

$$t = \frac {v - v_i} { a}$$

$$v_i = v - at$$