Calculate the average pressure exerted on the palm of a shot-putter’s hand by the shot if the area of contact is 50.0 cm2 and he exerts a force of 800 N on it. Express the pressure in N/m2 and compare it with the 1.00×106 Pa pressures sometimes encountered in the skeletal system.
Pressure is defined as the force per unit area. Mathematically, pressure, area and force are related as .
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Area of contact cm2
Force exerted N
We are required to calculate the pressure.
Pressure = Force/ Area
Pressure = 800 N/(50.0 X 10-4) m2
Pressure =16.0 X 104 N/m2
Pressure = 1.6 X 105 N/m2
Therefore, the pressure is 1.6 X 105 N/m2.