Q$2-$ Spring $AB$ and cable $AC$ are used to support the crate shown.

$(8$ Marks$)$

Given the stiffness of spring $AB$;kAB$=600\frac{N}{m},$ and the original length of spring $AB=3\mathrm{.}5m.$

Use Force Equilibrium Equations to determine the following:

$($a$)$ The magnitude of force in spring $AB$ is $q,$

$($b$)$ The magnitude of force in cable $AC$ is $q,$

$($c$)$ The weight of the crate is $q,$ N N

$($Explanation of the solution and the correct answer$)$