Monday

April 21, 2014

April 21, 2014

Posted by **Tim** on Sunday, March 3, 2013 at 2:50pm.

- Physics -
**Elena**, Sunday, March 3, 2013 at 3:24pmElongation of the spring is

x=2.69 –(2.22+0.28) = 0.19 m

mg= kx

k=mg/x- 145/0.19=763.16 N/m

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