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September 21, 2014

September 21, 2014

Posted by **sarah** on Friday, November 9, 2012 at 7:36pm.

- physics -
**bobpursley**, Friday, November 9, 2012 at 8:44pmhhhh?

- physics -
**kitty**, Tuesday, December 11, 2012 at 1:30ama) 34.5/(L/2) x 1.17= weight of second child (kg)

- physics -
**kitty**, Tuesday, December 11, 2012 at 1:37amb) weight of second child+34.5 kg+weight of plank (given in part B in the practice it)multiplied by 9.8= N

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