Chapter 14, Problem 14.14P

(a)

To determine

Find the active force, $P_a$ on the wall using Coulomb’s equation when the angle of wall friction $\left({\delta }^{\prime }\right)$ is 0.

(b)

To determine

Find the active force, $P_a$ on the wall using Coulomb’s equation when the angle of wall friction $\left({\delta }^{\prime }\right)$ is $20°$.

(c)

To determine

Find the active force, $P_a$ on the wall using Coulomb’s equation when the angle of wall friction $\left({\delta }^{\prime }\right)$ is $26.7°$.