Question

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

Answer 1

529.2 N

Step-by-step explanation:

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

1 pound = 0.45 kg

So

`m=120 p \cdot 0.45 kg/p = 54 kg`

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

`F=mg`

where

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

Substituting

`W=(54 kg)(9.8 m/s^2)=529.2 N`