Moments and force -- Forces on a cantilever hole punch

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radaway
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Homework Statement


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.

Homework Equations


http://s6.postimg.org/yx62wbild/image.png

The Attempt at a Solution


would it be :
40 N X 5 cm = 1,1cm X 'x' ?
 
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Discussion

What about the two in the number of holes ?
 
<What about the two in the number of holes>
umm.. the perforater did what it normally needs to do. punch in 2 holes at the same time.
did you mean , I multiply the r.h.s of the equation with '2' ?
 
radaway said:
Calculate the total force which a single pin presses on the paper.
is what is asked for ...
 
Post edited to remove insult
How about --

40*(5+1.1)=(2f)*1.1 , thus f=... N.
 
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