Calculate Speed on a Circular Track with Radius 135m

[Brittykitty]

A student runs on a circular track that has a radius of 135 m. If she accelerates at 0.60 m/s2, what is her speed?

a=V2/R?
0.62m/s2 /135m??

I think I def have the wrong formula, is anyone able to help me out to find speed?

 

[rock.freak667]

you have the correct formula, v²=aR, so just get v

 

[Brittykitty]

How do I get the v? :) thank you

 

[rock.freak667]

How do I get the v? :) thank you

take the square root.

 

[Brittykitty]

v2=aR
0.62m/s2 /135m
0.004
sqare root = 0.26?
Im def doing something wrong, maybe I am putting it in my calculator wrong

 

[rock.freak667]

v2=aR
0.62m/s2 /135m
0.004
sqare root = 0.26?
Im def doing something wrong, maybe I am putting it in my calculator wrong

You should be multiplying, not dividing as you are doing.

 

[Brittykitty]

thank you! :)