- #1

- 367

- 0

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter fk378
- Start date

- #1

- 367

- 0

- #2

Defennder

Homework Helper

- 2,591

- 5

- #3

HallsofIvy

Science Advisor

Homework Helper

- 41,847

- 969

The "right hand rule" appears in relation to the cross product of vectors, magnetic fields, etc. What, exactly is your problem?

- #4

- 367

- 0

Find |u x v| and determine whether u x v is directed into the page or out of the page.

|u| = 5 and is directed in the direction of the z-axis.

|v| = 10 and and is 60 degrees clockwise from the vector u.

- #5

Defennder

Homework Helper

- 2,591

- 5

60 degrees clockwise in which plane?

- #6

- 367

- 0

They are in the same plane.

- #7

- 12,134

- 161

Find |u x v| and determine whether u x v is directed into the page or out of the page.

|u| = 5 and is directed in the direction of the z-axis.

|v| = 10 and and is 60 degrees clockwise from the vector u.

I'm assuming u and v are in the plane of the page.

With your right hand, make a "backwards L", with the 4 fingers lined up together and your thumb pointing off to the side.

Point the 4 fingers in the direction of u (the first vector in the cross product).

Keeping those fingers pointing along u, rotate or twist your hand so that the palm faces clockwise (i.e., towards the direction of v, the 2nd vector in the product).

Your thumb is now pointing in the direction of u x v.

- #8

Defennder

Homework Helper

- 2,591

- 5

http://en.wikipedia.org/wiki/Image:Rechte-hand-regel.jpg

Let your thumb be 'u', your forefinger be 'v'. Your middle finger is now pointing in the direction of u x v.

Share:

- Replies
- 1

- Views
- 3K