What is the coefficient of kinetic friction in this problem?

Click For Summary
SUMMARY

The coefficient of kinetic friction, symbolized as μk, is the primary focus of this discussion. The sled's mass was calculated to be 23.98 kg, but this step was deemed unnecessary since the gravitational force (mg) was provided. To find μk, participants were advised to utilize the net force equation and the force of friction (Ff) as a starting point for calculations. Understanding these relationships is crucial for solving problems involving kinetic friction.

PREREQUISITES
  • Understanding of Newton's laws of motion
  • Familiarity with the concepts of force and friction
  • Basic knowledge of mass and weight calculations
  • Ability to manipulate equations involving forces
NEXT STEPS
  • Study the relationship between net force and acceleration in Newton's second law
  • Learn how to calculate the force of friction using Ff = μk * N
  • Explore examples of kinetic friction problems in physics textbooks
  • Investigate the effects of surface materials on the coefficient of kinetic friction
USEFUL FOR

Students studying physics, educators teaching mechanics, and anyone interested in understanding the principles of friction and motion.

JohnSmith12
Messages
1
Reaction score
0
Thanks everyone for your help.
 
Last edited:
Physics news on Phys.org
The velocity is constant, and that means that the acceleration is zero. That has something to do with the net force...
 
JohnSmith12 said:
I solved for the mass of the sled, 23.98kg.
OK, but that step was unnecessary. (You were given mg, and that's what you need.)

JohnSmith12 said:
But without mk I'm having difficulty finding an answer.
mk, usually symbolized as ##\mu_k##, is what you are solving for. Use NTW's hint to determine for the force of friction, Ff. Then you can solve for the coefficient of friction.
 

Similar threads

Static vs Kinetic Friction on an Unbanked Ramp
  • · Replies 3 ·
Replies
3
Views
2K
Equation calculations about the coefficient of kinetic friction
  • · Replies 5 ·
Replies
5
Views
3K
A cylinder rotating on a plane with friction and then moving across a frictionless plane to a collision
  • · Replies 1 ·
Replies
1
Views
1K
Does coefficient of kinetic friction depend on speed?
  • · Replies 16 ·
Replies
16
Views
6K
Why is the direction of kinetic/static friction up a ramp?
  • · Replies 7 ·
Replies
7
Views
2K
Kinetic coefficient of friction greater than the static coefficient?
  • · Replies 13 ·
Replies
13
Views
3K
Friction of a sliding mass on a slope
  • · Replies 4 ·
Replies
4
Views
901
Falling stick problem (no friction): What is the kinetic energy?
  • · Replies 3 ·
Replies
3
Views
2K
Coefficient of kinetic friction of a block sliding across the ceiling
  • · Replies 7 ·
Replies
7
Views
2K
Coefficient of Friction question for a cart going down a wooden ramp
  • · Replies 18 ·
Replies
18
Views
3K