A 45kg three legged stool supports a 77kg person If each leg

A 45-kg, three legged stool supports a 77-kg person. If each leg of the stool has a cross-sectional diameter of 3.0 cm and the weight of the person is evenly distributed, determine the pressure exerted on the floor by each leg Pa

Solution

in vertical, 3 F - m g - M g = 0

3 F = (3x4.5 + 77)(9.8)

F = 295.6 N

P = F / A

P = (295.6) / (pi 0.015^2)

P = 418235 Pa