Final answer:
The force exerted on a person's foot with an area of 0.5 m2 and a pressure of 25 N/m2 is 12.5 N, calculated using the formula F = P × A.
Step-by-step explanation:
The force placed on a person's foot with an area of 0.5 m2 and exerting a pressure of 25 N/m2 (assuming '25' represents the pressure in Newtons per square meter) can be calculated using the pressure formula: Pressure (P) = Force (F) / Area (A). To find the Force, we rearrange the formula to F = P × A. Therefore, the force exerted is F = 25 N/m2 × 0.5 m2 = 12.5 N.