Work Done by Friction

  • Thread starter Jtappan
  • Start date
  • #1
96
0

Homework Statement



Jim rides his skateboard down a ramp that is in the shape of a quarter circle with a radius of 6.50 m. At the bottom of the ramp, Jim is moving at 2.82 m/s. Jim and his skateboard have a mass of 67.0 kg. How much work is done by friction as the skateboard goes down the ramp?
__________ J



Homework Equations



w=f*d

The Attempt at a Solution



Is this sort of a angular velocity problem? I dont even know how to set this one up
 

Answers and Replies

  • #2
96
0
disregard this post....sorry i posted it twice
 
  • #3
36
0
You could try conservation of energy:

K + U + W[nonconservative forces] = K[f] + U[f]

Where the work done by nonconservative forces is the force of friction times the distance.
 

Related Threads on Work Done by Friction

  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
2
Views
898
  • Last Post
Replies
11
Views
9K
Replies
18
Views
9K
  • Last Post
Replies
6
Views
2K
  • Last Post
Replies
3
Views
2K
Top