Sos. $24$ to $25$: The line loads as shown in Figure are applied at the ground surface.

$24.$ If $q_1$ is zero and $q_2$ is $300k\frac{N}{m},$ what is the vertical stress at point $A?$

a$.)5\mathrm{.}4$ kPa

b$.)14\mathrm{.}4$ kPa

c$.)10\mathrm{.}8$ kPa

d$.)3\mathrm{.}0$ kPa

$25.$ Due to the applied line loads $q_1$ and $q_2,$ the vertical stress increase at point $A$ is $42$ kPa $.$ What is the $q_1$ when $q_2$ is $300k\frac{N}{m}?$

a$.)230k\frac{N}{m}$

b$.)150$ KN$/$m

c$.)269\mathrm{.}8K\frac{N}{m}$

d$.)203\mathrm{.}5K\frac{N}{m}$