A -5 ms2. To find a time average of the force exerted in a collision we can simply assume that the force has a constant average size. What may at first surprise you is that extending the distance moved during the collision reduces the average impact force.
We will denote this size with the symbol.
F m v² 2 d where. Measure the final velocity of the slowing object. For a simple example calculation consider a flat surface with a 2-kg block of wood sitting on it. Thus average Force is equal to the mass of the body multiplied by the average velocity over the defined time.