Q$1.$ For a continuous foundation, the following are given:

a$.B=4ft($width$),D_t=3ft($depth$),y=110I\frac{b}{f}{t}^3,{}^3=25,c^2=600lb/$ft$^2$

b$.B=2m($width$),D_t=1m($depth$),=17k\frac{N}{m^3},{}^2=30,c^2=0$

Use Terzaghi and Vesic Equations and a factor of safety of $4$ to determine the allowable bearing capacity. Assume that general shear failure occurs in soil.