A block of mass m is attached to a spring with spring constant k and in contact with an inclined plane with coefficients of friction uk and us and angled at an angle theta above horizontal. The spring is stretched out, well past what is shown, then allowed to relax back until the block just barely doesn’t move. Find an expression for the amount of stretch in the spring delta x as a function of the above variables and any appropriate physical constants for the amount of stretch in the spring.