Answer:
The man exerts the lease pressure on ground
Explanation:
Pressure is the force (F) applied per unit area (A).
[tex]P = \frac{F}{A}[/tex]
Let us find out the pressure for each individual.
1. For the man with weight (F) = 600N and heel area (A) = 100cm², the pressure on the ground ([tex]P_{m}[/tex]) is,
[tex]P_{m} = \frac{F}{A}[/tex]
[tex]P_{m} = \frac{600}{100} = 6 N/cm^{2}[/tex]
2. For the child with weight (F) = 200N and heel area (A) = 25cm², the pressure on the ground ([tex]P_{c}[/tex]) is,
[tex]P_{c} = \frac{200}{25} = 8 N/cm^{2}[/tex]
3. For the woman with weight (F) =450N and heel area (A) = 2cm², the pressure on the ground (P_{w}) is,
[tex]P_{w} = \frac{450}{2} = 225 N/cm^{2}[/tex]
Thus the man is exerting least pressure on the ground that is 6 N/cm².
