Calculate the average decelerating impact force per unit area, if a person falling with a terminal velocity of 62.5m/s is decelerated to zero velocity over a distance of 1m. Assume that person's mass is 70 kg and that she lands flat on her back so that the area of impact is 0.3 square meters.Is this force below the level of serious injury? (For body tissue, this is about 500,000 Pa.)