Calculate the stretch for a linear spring given the spring constant and the applied force.

Example question:

How far will a linear spring with a constant of 630 N/m be stretched by a 140 N force?

Given:

spring constant: k = 630 N/m

force: F = 140 N

Starting formula

Algebra: divide both sides by k

Algebra: k's cancel on right

Algebra: switch left and right

Plug in numbers with units

Divide: 630/140 = 4.5

Final result with significant figures and unit