Posted by **sagor** on Saturday, February 16, 2013 at 2:53pm.

A light spring with spring constant 1 200 N/m is hung from

an elevated support. From its lower end hangs a second

light spring, which has spring constant 1 800 N/m. An

object of mass 1.50 kg is hung at rest from the lower end of

the second spring. (a) Find the total extension distance of

the pair of springs. (b) Find the effective spring constant

of the pair of springs as a system. We describe these springs

as in series.

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