Part a of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 108.0 N. Part b shows the same bucket of water being pulled up from the well at a constant velocity. What is the tension in the rope in part b?
http://i21.photobucket.com/albums/b272/Cajunboiler/buckets.gif
2006-10-04 09:11:08 · 4 answers · asked by Confused 1 in Science & Mathematics ➔ Physics
Any idea on what the answer is? I thought it would be 108 on the rope for part b, but that's wrong.
2006-10-04 09:16:21 · update #1
No, I copied and pasted the problem. I submitted it online the computer said it was wrong.
The rope is tied to bucket A twice and only once to part B. Could that possibly affect it?
2006-10-04 09:30:48 · update #2
216 is the correct answer. Thanks for your help!
2006-10-04 09:48:04 · update #3
This is just a homework problem I had a question with. The way my homework works is that I submit answers online and it tells me if I'm right or wrong. However, I only get 5 chances to submit the correct answer.
2006-10-04 09:49:05 · update #4
that makes sense.
2006-10-04 09:56:43 · update #5
our website is Webassign
2006-10-04 09:57:08 · update #6
Yes that could affect it. I just noticed that. Try the answer 216 N. Where did you submit your problem? Go to that place and submit 216 N, and then tell me what happens. Is this an actual problem or a conceptual question? According to part a, the total tension acting on the combination of ropes is 108.0 N. Therefore, the object must weigh 216 N. That way, each rope would equally take on 108 N. If there was only one rope, as in part b, it would take on the whole 216 N by itself. The answer must be 216 N.
In my AP Physics class, for a little while, our teacher made us go on some weird website to do our homework. It was called WileyPlus physics, or something like that.
2006-10-04 09:19:38 · answer #1 · answered by عبد الله (ドラゴン) 5 · 0⤊ 0⤋
The only way you would have a different tension on the rope is if there is friction involved. Did they mention that this was a frictionless pulley and a massless rope? ... oops, I should have looked at the drawing first. You are right, the tension is twice the original... before you had two ropes holding it up now just one.... assuming there's no friction :-)
-jose-
2006-10-04 16:46:24 · answer #2 · answered by ? 2 · 0⤊ 0⤋
The gravitational force on the bucket and rope is 108N.
When the bucket is moving at constant velocity there is no nett resultant (unbalanced) force acting so the tension will remain at 108N
2006-10-04 18:04:54 · answer #3 · answered by hippoterry2005 3 · 0⤊ 0⤋
wouldnt it be the wieght of the bucket and water?
cuz the weight is what is pulling on the rope.
the pulley makes it easier to lift, but the bucket's weight doesnt change
2006-10-04 16:13:49 · answer #4 · answered by Anonymous · 0⤊ 0⤋