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## Homework Statement

what is the form of the equation of motion for the SHM of a mass suspended on a spring when the mass is initially (a)released 10 cm above the equilibrium position; (b) given an upward push from the equilibrium position, so that it undergoes a maximum displacement of 8cm; (c) given a downward push from the equilibrium position, so that it undergoes a maximum displacement of 12 cm?

## Homework Equations

So I know y= Acos(t*2*pi)/T

## The Attempt at a Solution

so would (a) just be y = .10cos t/[square root(m/k)]