Answer :
Answer:
pressure exerted by each leg = 464,210.5 N/m^{2}
Explanation:
mass of man (Mm) = 67 kg
mass of chair (Mc) = 5 kg
radius of each leg (r) = 1.1 cm = 0.011 m
acceleration due to gravity (g) = 9.8 m/s^{2}
weight of the man = mg = 67 x 9.8 = 656.6 N
weight of the chair = mg = 5 x 9.8 = 49 N
weight of the man and chair = 656.6 + 49 = 705.6 N
since the mans weight is evenly distributed, the weight is divided evenly on the four legs. therefore
weight on each leg = 705.6 / 4 = 176.4 N
pressure exerted by each leg = force / area = weight / area
pressure exerted by each leg = [tex]\frac{176.4}{π x 0.011^{2}}[/tex]
pressure exerted by each leg = 464,210.5 N/m^{2}