Hooke's Law and Spring Force
Learn how Hooke's Law relates a spring to the force required to stretch it a certain distance using the equation Fspring = -kx.
Hooke's Law Equation
A spring scale works by using a spring to tell you how much force is present.
Hooke’s Law: Fspring = -kx
Fspring = force in the spring (N)
k = spring constant: relates the force on the spring to displacement (unit: N/m)
x = displacement of a spring (m)
Example Problem (Hooke's Law)
1. How much is the spring constant in a spring that requires 150 N of force to displace it 0.030 m from the origin?