Feedback inhibition works by deactivating an enzyme using the product of the reaction the enzyme catalyzes. Enzymes bind to molecules with active sites that are specifically designed to fit with the molecule undergoing the reaction.
The formula for acceleration is given as a = (v2 - v1) / (t2 - t1), where a denotes the acceleration, v2 indicates the final velocity, v1 represents the initial velocity and t2 - t1 is the... Star Gazing
The change in velocity divided by the change in time is the definition of the acceleration a. The second law then reduces to the more familiar product of a mass and an acceleration: F = m * a. Remember that this relation is only good for objects that have a constant mass.