Calculate the pressure exerted by the four feet of a chair on the ground if the area of contact of one leg of the chair is `0.1m^(2)` and the chair and a person sitting on it together exert a force of 500 N on the ground.

Explanation

To calculate the pressure exerted by the four legs of a chair on the ground, we can follow these steps:

### Step 1: Identify the total force exerted on the ground
The total force exerted by the chair and the person sitting on it is given as 500 N.

### Step 2: Determine the area of contact for one leg of the chair
The area of contact for one leg of the chair is given as 0.1 m².

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