Magnitude and direction of the net force on charge -3Q and charge 4Q

  • Thread starter balletgirl
  • Start date
  • #1
36
0

Homework Statement



Four charges are located at the corners of a square as shown below. Calculate the magnitude and direction of the net force on charge -3Q and charge 4Q.

(sorry don't have picture, but it is of a square with corners -Q, 2Q, -3Q, and 4Q clockwise).


Homework Equations



F= K(q1)(q2)/r^2

K= 8.99x10^9

The Attempt at a Solution



I don't understand how to start with the information I've been given, it seems like its not enough.
 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
25,832
251
Hi balletgirl! :wink:

Start with the charge of -3Q.

Draw the three vectors through it representing the forces from the other three charges.

Then add those three vectors by adding their components …

what do you get? :smile:
 

Related Threads on Magnitude and direction of the net force on charge -3Q and charge 4Q

Replies
2
Views
8K
Replies
2
Views
2K
Replies
10
Views
5K
Replies
6
Views
4K
Replies
2
Views
11K
Replies
2
Views
4K
  • Last Post
Replies
3
Views
1K
Replies
5
Views
3K
Replies
17
Views
7K
Top