anonymous
  • anonymous
Hey- could someone please help me with the free body diagrams. If there is a hand pushing on a book,laying on a table- what are the forces acting on the book? I thought they were normal force, force of hand and gravity.
Physics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Consider the presence of a friction force as well. It will be directed opposite the force of the hand. Otherwise, the three you named is it.
anonymous
  • anonymous
Will there be friction, if the hand is acting upon the book from above?
UnkleRhaukus
  • UnkleRhaukus
|dw:1334633188981:dw|

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
Okay thank you this was very helpful.
anonymous
  • anonymous
If the book is being pushed up a wall what forces would affect the book? Here is what I think?
anonymous
  • anonymous
|dw:1334634207666:dw|
anonymous
  • anonymous
Gravity does not act on the book in the horizontal direction. If the applied force is vertical, there will be no normal force between the book and the wall and thereby no friction force. |dw:1334635152412:dw|
anonymous
  • anonymous
Isn't there friction because there are two surfaces in contact with each other?
anonymous
  • anonymous
yeah but only is when surfaces are moving wrt each other..
anonymous
  • anonymous
From Coulomb's Friction model, there must be a normal force present between the two. In this basic case, there is no normal force between the wall and the book and therefore, no friction force.
anonymous
  • anonymous
Coulomb's friction model is\[F_f = mu N\]
anonymous
  • anonymous
We can't simply create a normal force because we desire to have friction.
anonymous
  • anonymous
Hmm.... this is interesting that's seems kind of strange, but I understand it.
anonymous
  • anonymous
I have one more quick question (thank you for your patience): If there are for links connected together and are suspended by a rope. Here is what I thinks and a picture:
anonymous
  • anonymous
|dw:1334636071637:dw|
anonymous
  • anonymous
The force on 1= tension of rope and weight of rings 2,3 and 4. The force on 2= tension caused by chain link 2 and force of weight of 3 and 4. The force on 3 = tension caused by chain links 1 and 2 and weight of 4. The force on 4= tension caused by chain links 1,2 and 3 and force of gravity.
anonymous
  • anonymous
Indeed. Realize that tension of the rope must equal the weight of all four ring if the links aren't moving.
anonymous
  • anonymous
k- good I think I get the concept. Thank you a ton- you are very patient.
anonymous
  • anonymous
You're very welcome!

Looking for something else?

Not the answer you are looking for? Search for more explanations.