Scenario

A $1\mathrm{.}5-$foot thick concrete $(=150pcf)$ retaining wall is planned to be constructed as in the figure at right. The coefficient of base friction for the wall is $0\mathrm{.}46.$

Question #$1(5$ pts$.)$:

Determine the active earth pressure against the retaining wall, and check the wall for factors of safety against sliding and overturning.

Question #$2(3$ pts$.)$:

Create the base pressure profile of the retaining wall, and determine, on its basis, the minimum safe bearing pressure of the soil.