A 50.0-kg person sits on a 4.0 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.30 cm in diameter. Find the pressure exerted on the floor by each leg of the chair, in megapascals, assuming the weight is evenly distributed.

Use the definition of pressure (Eq. 15-2), keeping in mind that the force is equally distributed on the four legs. Recall the prefix "mega".