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 September 27th, 2016, 12:09 PM #1 Member   Joined: Nov 2012 From: The Netherlands Posts: 33 Thanks: 2 moments and force sam makes a punch hole with the perforater( two holes ). She presses the lever at A down with a force of 40 N. Calculate the total force which a single pin presses on the paper. 2. Relevant data http://s6.postimg.org/yx62wbild/image.png 3. The attempt at a solution would it be : 40 N X 5 cm = 1,1cm X 'x' ?
 September 27th, 2016, 01:24 PM #2 Senior Member   Joined: Aug 2016 From: morocco Posts: 273 Thanks: 32 we look for f such that 40*(5+1.1)=(2f)*1.1 thus f=... N. Thanks from hello_math
 September 28th, 2016, 12:33 AM #3 Member   Joined: Nov 2012 From: The Netherlands Posts: 33 Thanks: 2 Thank you !

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