How Do You Determine the Spring Constant with Mass and Displacement?

[kbyws37]

The length of a spring increases by 6.90 cm from its relaxed length when a mass of 1.10 kg is suspended from the spring.What is the spring constant?

so I know that ultimately i use hooke's law which is
F=kx
but how would i figure out F if i only have the mass?

I can't do F=ma b/c i don't have the acceleration.
I'm confused
thanks

 

[Hootenanny]

Note that this spring will be vertical when the mass is suspended from it.

 

[kbyws37]

so will i assume that the force is the mass of the spring.
so
F=kx
(1.10) = k (6.90)

but it says I'm wrong

 

[radou]

so will i assume that the force is the mass of the spring.
so
F=kx
(1.10) = k (6.90)

but it says I'm wrong

The force can't equal the mass. Weight can be a force, and it equals m*g.

 

[kbyws37]

thanks!
i think i wasn't thinking straight :)