If the tension in the rope steadily increases, at what value of the tension does the

  • Thread starter Wommbatt
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  • #1
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Homework Statement


A rope attached to a 19.0kg wood sled pulls the sled up a 22.0 degree snow-covered hill. A 11.0 kg wood box rides on top of the sled.


Homework Equations


I have no what the equation may be, I was just doing some research and came across this website plus others and didn't give the formula just some numbers strung together but I attempted it below but I do not know if it is right. My problem also didn't give me the co-efficients of snow on snow and wood on wood so I also took these from previous problems I found on the internet I'm not sure if they are always constant or not.

The Attempt at a Solution


(19kg+11kg)(9.80m/s2)(0.5+0.06)cos22degrees)
(30kg)(9.80m/s2)(0.56)cos22degrees
=153N
 

Answers and Replies

  • #2
PeterO
Homework Helper
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Homework Statement


A rope attached to a 19.0kg wood sled pulls the sled up a 22.0 degree snow-covered hill. A 11.0 kg wood box rides on top of the sled.


Homework Equations


I have no what the equation may be, I was just doing some research and came across this website plus others and didn't give the formula just some numbers strung together but I attempted it below but I do not know if it is right. My problem also didn't give me the co-efficients of snow on snow and wood on wood so I also took these from previous problems I found on the internet I'm not sure if they are always constant or not.

The Attempt at a Solution


(19kg+11kg)(9.80m/s2)(0.5+0.06)cos22degrees)
(30kg)(9.80m/s2)(0.56)cos22degrees
=153N
No part of this post refers to what you are trying to calculate??????
 
  • #3
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I'm trying to calculate the tension.
 
  • #4
PeterO
Homework Helper
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I'm trying to calculate the tension.
You have not given enough information.

Is the rope parallel to the slope?

Is the sled accelerating or moving at constant speed?

And yes, is there any friction? - it should be minimal, that is why we use a sled on snow.
 
  • #5
PeterO
Homework Helper
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I'm trying to calculate the tension.
Your title for this thread is:

If the tension in the rope steadily increases, at what value of the tension does the

That might be a problem statement, but perhaps you didn't notice it stops mid sentence.

Perhaps if you typed the full statement you put in the title [but title cuts off after a certain number of characters] it would be clearer.
 

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