# Angular Velocity (conceptual)

1. Nov 15, 2007

### Eternalmetal

1. How do various distances influence the angular velocity of earth? Tangential velocity? explain

2. Relevant equations

3. For some reason, I tend to think that distance doesnt relate, but I do not know where to begin to explain. I also could not find the answer in my physics book.

2. Nov 15, 2007

### Ojizo88

Im a little unsure of the question, but...

Angular velocity has nothing to do with the radius of ( or distance from ) the earth. Its purely how many times something is rotating per unit time.

Tangential velocity does depend on distance and you need only to think about it. If I want to make one lap around my around a circle of radius R, it would take me t seconds to do it, and you can also visualize the distance covered as a straight line whose length is simply the perimeter of the circle. To run the perimeter of larger and larger circles in the same amount of time ( so you angular velocity would be the same ) you are going to have to run faster and faster to keep up.

Make sense?

3. Nov 15, 2007

### Eternalmetal

Kind of, although im also unsure of exactly what she is asking. My teacher is vague like that.

4. Nov 15, 2007

### Ojizo88

Ironic

5. Nov 15, 2007

### Eternalmetal

Considering my teacher made up the question, I dont see the irony :lol: