How Does a Spring Constant Affect Circular Motion on a Frictionless Table?

[acg7160]

Homework Statement

A 2.3 kg mass is connected to a spring with spring constant k = 180 N/m and unstretched length 17 cm. The pair are mounted on a frictionless air table, with the free end of the spring attached to a frictionless pivot. The mass is set into circular motion at 1.6 m/s .

Homework Equations

F=ma=(mv^2)/r F=kx ...not really sure

The Attempt at a Solution

I don't know how to even start it :(

 

[rock.freak667]

What do you need to get in the first place?

 

[acg7160]

oh sorry! the radius of its path.

 

[rock.freak667]

oh sorry! the radius of its path.

well you were not given the extension so you are missing some information. You were correct in equation mv²/r to kx.

 

[acg7160]

That's all I was given...