How much force does the ground exert a 120 pourd person that is standing still?

529.2 N

Explanation:

First of all, we need to convert the mass of the person into kg. We have:

1 pound = 0.45 kg

So

Now the force exerted by the ground on the man is equal to the weight of the man:

where

g = 9.8 m/s^2 is the acceleration due to gravity

Substituting

the area between the graph and the t axis

the ima (higher than 1m) will be greater than the ima with the height of 1m.