Curry
  • Curry
Help with physics question.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Curry
  • Curry
1 Attachment
Curry
  • Curry
@nincompoop Please ? I posted twice, I didn't get any help...
Curry
  • Curry
@myininaya

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Curry
  • Curry
@Preetha @dan815
Curry
  • Curry
@Zarkon
anonymous
  • anonymous
Olmost got it
Curry
  • Curry
the answer is 2/9. but I don't understand the work behind it. they did (1/3m)(Mx1 + m(x1+ l/4) + m(x1+l/4+l/2). with x1 being the amount of the book ON the table.
Curry
  • Curry
@Hero
anonymous
  • anonymous
sorry cant help
anonymous
  • anonymous
1/3m( mx1+m(x1+1/4)+m(x1+1/4+1/2) x1=-1/3, 1/2-1/3= 1/6 1/6 bottom book can over hang
Curry
  • Curry
why is the second value x1 + 1/4 though?
Curry
  • Curry
I would imagine it'd be x1- l/4. right? cause that's the part of the book that's on the table?
anonymous
  • anonymous
Center of mass of each book at its center
Curry
  • Curry
mhmm. and then?
anonymous
  • anonymous
Because furthest right is the center of mass, then take origin st edge postive to right
Curry
  • Curry
wait, i don't understand what you're saying exactly, sorry! can you please explain it diferently?
anonymous
  • anonymous
|dw:1432797245916:dw|
anonymous
  • anonymous
Also you pushing from the right side, so we are going with the normal force and not against it

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