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Apr 3, 2017 at 8:54 answer added Jonathan timeline score: 0
Feb 2, 2017 at 20:53 answer added Chris Johns timeline score: 1
Feb 2, 2017 at 11:35 comment added user_1818839 As we don't have legends on any of the parts we can only guess what's exerting force on what. But if 7 is pressing 10 down onto 9, then 7 must be exerting downwards force on 10 by pressing on 10's upper surface. Of course when it's releasing, the reverse will be true.
Feb 2, 2017 at 9:44 history edited M. Wother
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Feb 2, 2017 at 0:23 history asked M. Wother CC BY-SA 3.0