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September 17, 2014

September 17, 2014

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

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.

- physics -
**drwls**, Saturday, February 16, 2013 at 3:59pmSprings in series add like resistors in parallel.

1/Keff = 1/K1 + 1/K2

= 1/1200 + 1/1800

= 5/3600 = 1/720

Keff = 720 N/m

Is the effective spring constant of the pair of springs in series.

Extension = M*g/Keff

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