Coefficient of Kinetic friction problem

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Homework Help Overview

The problem involves determining the coefficient of kinetic friction for a sled being pulled at a constant velocity on a level surface. The sled has a mass of 110 kg, and the original poster calculated the downward force but encountered uncertainty due to missing information regarding angles.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the forces acting on the sled but expresses uncertainty about the next steps due to the absence of angle information, which was present in previous examples.

Discussion Status

Some participants question the completeness of the problem statement, noting that additional information was expected. The original poster later clarifies that the issue was due to a typo on the worksheet, which has since been resolved.

Contextual Notes

There was a noted lack of information in the original problem, specifically regarding angles, which led to confusion. The discussion reflects on the impact of such errors on students' understanding.

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Homework Statement


Harry pulls a sled with a mass of 110kg along a level surface of the forest in a straight line at a constant velocity. What is the coefficient of kinetic friction between the surface and the sled?


Homework Equations


[tex]f_k = \mu_k N[/tex]
Fg=ma

The Attempt at a Solution


I calculated the downward force of the sled, which is 1079.1 N. After that I'm not really sure what to do. The other examples we did in class gave an angle, but this one doesn't seem to have one.
Thanks in advance
 
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I would expect more information to be given with this.
 
Well, I asked my teacher and it was a typo on the worksheet. There is suppose to be more information. I solved it after I got the information. Thanks anyway.
 
Ahh, the old typo on the worksheet. I'm sure that frustrated more thana few students. At least its sorted now.
 

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