Changes in energy w/ coefficient of friction

Click For Summary
SUMMARY

The discussion centers on the relationship between energy and the coefficient of friction in physics. The user clarified that the work done against friction is negative, leading to the equation 1/2mv^2 = mgh - W, where W represents the work done against friction. This equation illustrates how friction affects the conservation of mechanical energy in a system. The user resolved their query independently, indicating a clear understanding of the topic.

PREREQUISITES
  • Understanding of Newtonian mechanics
  • Familiarity with the concepts of kinetic and potential energy
  • Knowledge of work-energy principles
  • Basic grasp of friction and its effects on motion
NEXT STEPS
  • Study the work-energy theorem in detail
  • Explore the implications of negative work in mechanical systems
  • Investigate the role of the coefficient of friction in energy loss
  • Learn about energy conservation in the presence of non-conservative forces
USEFUL FOR

Students of physics, educators teaching mechanics, and anyone interested in understanding the dynamics of energy and friction in physical systems.

chrisPHYSICS
Messages
1
Reaction score
0
EDIT: Never mind, I figured it out, please ignore this or mods delete it.
 
Last edited:
Physics news on Phys.org
Work done against friction is negative. So your equation should be

1/2mv^2=mgh - W
 

Similar threads

  • · Replies 8 ·
Replies
8
Views
1K
  • · Replies 8 ·
Replies
8
Views
1K
  • · Replies 6 ·
Replies
6
Views
2K
Replies
5
Views
3K
Replies
18
Views
3K
  • · Replies 37 ·
2
Replies
37
Views
2K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 13 ·
Replies
13
Views
2K
  • · Replies 16 ·
Replies
16
Views
6K