Asked by Annie

a)How much work is required to lift a 35-kg object from the ground 3.0 m into the air?

b) How much gravitational potential energy did this object gain?
Answered by Damon
35 * g = weight
weight * distance raised = work in

which is exactly the increase in potential energy
Answered by Annie
So 35 x 9.8 = 343 N

343 x 3.0 = 1029 J

Is that the answer to A or B, I'm a bit confused
Answered by DrBob222
yes.
Answered by Damon
or yes, yes :)
Answered by Apesetic
yes as in for A) or yes as in for B) o_O
Answered by Annie
That's what I'm thinking..
Answered by DrBob222
Just for clarity; yes for A and yes for B.
Answered by Higming
343 N for A and 1029 J for B
Answered by Higming
343 N for B and 1029 J for A
Answered by xcxz
cxzx
Answered by Student
But where did you guys get the 9.8 from?
Answered by Student
Fg=M x g Is that right cause i am doing a test
=35 kg x 9.8N
=343N

343 x 3.0=1029J
Answered by Student
Not right now but it is on a review sheet for the test and the test is tomorrow
Answered by VERY STRESSED STUDENT
So does a)343N and b)1029J
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Answered by Not that stressed student
I figured it out thx for the help u guys
Answered by STUDENT
IS 343N A AND 1029J B IM VERY CONFUSED
Answered by yoyo
lol, we have this on a review sheet Aswell. how students from different years been answering this is just hilarious.
Answered by Anonymous
same and it for A)
Answered by Student
crazy
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