# Homework Help: Help with physics

1. Oct 19, 2004

### tman

A weight attached to a wire is swung in a circular path. Its speed is 12 meters/sec and it has a centripetal acceleration of 9 meters/sec2. Calculate the diameter of the circle.

__________meters

2. Oct 19, 2004

### Pyrrhus

Use

$$A_{c} = \frac{v^2}{r}$$

3. Oct 19, 2004

### Ba

The diameter is twice the radius what is the formula of centripetal acceleration.

4. Oct 20, 2004