Solved: Calculate Force from Spring Constant & Rod Length

[antphany]

Homework Statement

given a spring constant of 2.1 x 10^6 N/m, calculate the amount of force needed to stretch a steel rod 0.001m

Homework Equations

f=kx

The Attempt at a Solution

dont know

 

[atisundar]

its plug and chug problem... you can't do it ? k and x is given...find f

 

[QuarkCharmer]

Hookes law states that the force required to stretch/compress a spring is proportional the the distance it stretches. That is where F = kx comes from, since the proportionality statement implies that they differ by a constant. If the constant k was 1, the force would equal the distance and so on. You are given k (the coefficient of proportionality aka spring constant) and x the distance, you simply need to solve for the force right?

 

[antphany]

Hookes law states that the force required to stretch/compress a spring is proportional the the distance it stretches. That is where F = kx comes from, since the proportionality statement implies that they differ by a constant. If the constant k was 1, the force would equal the distance and so on. You are given k (the coefficient of proportionality aka spring constant) and x the distance, you simply need to solve for the force right?

correct but idk

 

[NewtonianAlch]

Let's say A = b*c

b = 10
c = 10

What is A equal to?

 

[SammyS]

Given a value for k, and a value for x, can you calculate f ?