Mastering physics help - rail gun

Click For Summary

Homework Help Overview

The discussion revolves around a physics problem related to a rail gun, specifically focusing on the forces acting on a current-carrying wire in a magnetic field and the energy methods applicable due to non-constant acceleration.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • The original poster attempts to apply energy methods but is uncertain about the potential energy formula. Some participants inquire about the force on a current-carrying wire and the nature of the current involved.

Discussion Status

Participants are exploring different aspects of the problem, including the relationship between force and acceleration, as well as the source of the current. There is no explicit consensus yet, but various lines of reasoning are being examined.

Contextual Notes

There is mention of a capacitor supplying the current, which may influence the understanding of the current type and its implications for the problem.

pat666
Messages
703
Reaction score
0

Homework Statement



attached

Homework Equations





The Attempt at a Solution


I think i need to use energy methods for this because the acceleration is not constant..
trouble is I don't know the formula for the potential energy in cases like this.

Thanks for any help.
 

Attachments

  • PFMP.jpg
    PFMP.jpg
    21.3 KB · Views: 992
Physics news on Phys.org
What's the force on a current-carrying wire in a magnetic field? (There is a formula for it.)
 
F=BIL that's how i found the acceleration.. but i don't see how that helps with b??
 
how was this current produced in the first place? What kind of current are you dealing with?
 
I don't know what you mean? it was supplied by a cap if that helps?
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
7K
  • · Replies 3 ·
Replies
3
Views
1K
Replies
22
Views
5K
  • · Replies 24 ·
Replies
24
Views
3K
Replies
6
Views
1K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 16 ·
Replies
16
Views
3K
  • · Replies 36 ·
2
Replies
36
Views
4K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 2 ·
Replies
2
Views
6K