lgbasallote
  • lgbasallote
In 1990, walter arfeuille of belgium lifted a 281.5 kg object through a distance of 17.1 cm using only his teeth (a) how much work was done on the object by arfeuille in this lift, assuming the object was lifted at constant speed?
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.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
lgbasallote
  • lgbasallote
im thinking \[-\Delta U_{GRAV}?\]
anonymous
  • anonymous
Right-o!
lgbasallote
  • lgbasallote
so \[\implies -(281.5)(9.8)(0-0.171)?\] i change this to meters right?

Looking for something else?

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

More answers

anonymous
  • anonymous
0.171 is in metres already. I don't get your question.
anonymous
  • anonymous
that multiplication is the answer though..
lgbasallote
  • lgbasallote
the given was 17.1 i was confirming that i needed to change that to meters
lgbasallote
  • lgbasallote
or do i use 17.1?
anonymous
  • anonymous
ah, yes, it is 0.171 that you need you need to use.
lgbasallote
  • lgbasallote
ahh thanks
anonymous
  • anonymous
His work was used to increase potential energy of the weight, therefore you can calculate like W=mgh=281.5x9.81x0.171 J I have heard that the work done later on by his dentist to fix his dentures was quite hard
lgbasallote
  • lgbasallote
a follow up question was (b) What total force was exerted on arfeuille's teeth during the lift what does that mean?
anonymous
  • anonymous
The forced exerted was exactly F=mg=281.5 x 9.81 Newtons
anonymous
  • anonymous
It means that a downward force equal to the weight he lifted will be exerted on his teeth (the contact point).
anonymous
  • anonymous
Btw, @CarlosGP, I saw a man on TV lift a 1000kgs (a ton) with his teeth. Jus sayin.
anonymous
  • anonymous
I saw another one make the Statue of Liberty disappear! ;) Can you believe it?
anonymous
  • anonymous
but this was for real. It was on 'Superhuman' on the DISCOVERY CHANNEL!
anonymous
  • anonymous
I have to see under which conditions was the test carried out. I am not too sure neck muscles can stand that force
anonymous
  • anonymous
I'll try to find a video..
anonymous
  • anonymous
@rajathsbhat, I would appreciate it! Thanks!
lgbasallote
  • lgbasallote
so for (b) it's just gravitational force?
lgbasallote
  • lgbasallote
@rajathsbhat
anonymous
  • anonymous
yes. Sorry, I was busy searching for that vid.
lgbasallote
  • lgbasallote
haha lol...
anonymous
  • anonymous
and yes, it is the gravitational force.
lgbasallote
  • lgbasallote
thanks!!`
anonymous
  • anonymous
yw.

Looking for something else?

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