Find how far the spring will be stretched

[ShelbyMcD]

Homework Statement

A spring is stretched by a force of 0.80n a distance of 0.012m. Find how far it will stretch when the force is 0.54n.

One problem is that I don't know how to find k.

Homework Equations

F=kΔd

The Attempt at a Solution

F=kΔd
F=k(0.012m)
What is k?

 

[CWatters]

F=kΔd

so

k = F/Δd

 

[ShelbyMcD]

Wow...
I can't believe I didn't think of that. Thank you!