I have no idea where to start with springs,I like to blame my lecturer...(adsbygoogle = window.adsbygoogle || []).push({});

Anyway I have a past paper and there's a question that goes something like this

A particle of mass m hangs freely suspended by a light elastic spring of stiffness k.

In equilibrium, the extension of the spring is d. If x is used to measure the downward displacement of the particle beyond its equilibrium position,show that the equation of motion for the particle is

..

x+(g/d)x=0 t>0 (The first x is x double dot,or acceleration)

where g is acceleration due to gravity.

It seems like a simple enough problem,I just don't know where to begin.Any ideas?

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# Homework Help: Motion in springs

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