Answer:
[tex]p = 15260.643 \ lbf/ft^2[/tex]
Explanation:
person weight is 175 lbm
weight of stake board 4lbm
size of stakeboard = 2ft by 0.8 ft
area of stakeboard is [tex]2*0.8 ft^2 = 1.6 ft^2[/tex]
gauge pressure is given as
[tex]p =\frac{ w_p+w_s}{A} g[/tex]
where is g is acceleration due to gravity = 32.17 ft/sec^2
puttng all value to get pressure value
[tex]= \frac{175 +4}{1.6}* 32.17[/tex]
[tex]p = 15260.643 \ lbf/ft^2[/tex]
