Motional EMF

  • Thread starter Robb
  • Start date
  • #1
Robb
225
8

Homework Statement


upload_2016-4-17_19-1-20.png


Homework Equations


upload_2016-4-17_19-1-38.png


The Attempt at a Solution



Kinetic Energy + Potential energy=0

1/2mv^2 = mgcos(20)
100v^2 = 1.96cos(20)
v^2 = .0184
v = .136 m/s

No idea if this is correct or if I should proceed with energy considerations. Please advise.
 

Answers and Replies

  • #2
robphy
Science Advisor
Homework Helper
Insights Author
Gold Member
6,511
1,876
Under the influence of gravity and the normal force of the incline, the resulting motion is not at constant velocity. Right?

There must be an additional force somewhere to balance the forces.
So, you are missing something.
Is there anything else given in the problem that can be used?
 
  • #3
Robb
225
8
Thanks for the response. I got help in class last night!
 

Suggested for: Motional EMF

  • Last Post
Replies
6
Views
431
Replies
18
Views
364
Replies
5
Views
829
Replies
8
Views
174
  • Last Post
Replies
7
Views
161
Replies
13
Views
252
Replies
4
Views
202
Replies
5
Views
210
Replies
15
Views
324
Replies
41
Views
984
Top