Centripetal Acceleration metres per second squared

[Chica1975]

Homework Statement

What is the magnitude of the centripetal acceleration of a point on the circumference of a 0.32m radius bicycle wheel rotating at 22 rad/s ?

Give your answer in metres per second squared

Homework Equations

To be honest I am stumped I have no idea

The Attempt at a Solution

I am lost.

Please help!

 

[issacnewton]

centripetal acceleration is given by

a_c=\frac{v^2}{r}

where r is the radius which you can find since circumference is given. v is tangential velocity
you have been given angular velocity \omega. the relation between
tangential velocity and angular velocity is

v=r\omega

 

[Chica1975]

Thank you!

 

[Chica1975]

thanks so much for explaining why this is so clearly!