You are standing on your roommates back trying to help her r

You are standing on your roommate’s back trying to help her relieve stress associated with the Phys Geog class. The area of her back measures 2 feet by 3 feet. Calculate the pressure in psi (lbs / sq inch) you exert upon her back. 1 foot = 12 inches

Solution

Average weight of person is 60 kg = 132.277 pounds

   pressure = Force / area

             = weight / area

             = mg (pounds) / 6ft²

             = 132.277 ib / 6 (12 inch )²

              =0.153 psi