Radius and speed

  • #1
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?
 

Answers and Replies

  • #2
rock.freak667
Homework Helper
6,230
31
you have the correct formula, v2=aR, so just get v
 
  • #3
How do I get the v? :) thank you
 
  • #5
v2=aR
0.62m/s2 /135m
0.004
sqare root = 0.26?
Im def doing something wrong, maybe im putting it in my calculator wrong
 
  • #6
rock.freak667
Homework Helper
6,230
31
v2=aR
0.62m/s2 /135m
0.004
sqare root = 0.26?
Im def doing something wrong, maybe im putting it in my calculator wrong

You should be multiplying, not dividing as you are doing.
 
  • #7
thank you! :)
 

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