Question

Using Hooke's law, what happens when the displacement is tripled?

Answer 1

Mathematically, Hooke's law states that

where
x is the displacement of the spring's end from its equilibrium position (a distance, in SI units: meters);
F is the restoring force exerted by the spring on that end (in SI units: N or kg·m/s2); and
k is a constant called the rate or spring constant (in SI units: N/m or kg/s2).

When you triple the displacement, the restoring force triples

Answer 2

F=-kx

sorry it didnt copy right.

http://en.wikipedia.org/wiki/Hooke's_law