Question

While standing Fernando's feet contact the ground with an area of 0.08. While laying on the ground, his body contacts the ground with an area of 0.6. If Fernando's body has al mass of 75 kg, how much more pressure does he exert while standing compared to laying down? Use the conversion factor of 1 kg = 10 N. Round your answer to the nearest whole number There is Pa of difference.​

Answer 1

8125 Pa.

Step-by-step explanation:

pressure = Force/Area

force = mg

= 75 X 10

= 750 N

pressure exerted while standing= 750/0.08

= 9375 Pa

pressure exerted while lying on the ground= 750/0.6

= 1250Pa

Thus the difference in pressure is = 9375 - 1250

= 8125 Pa.