Question

What is the spring coefficient of a spring that stores 4000 joules of energy

when it is stretched .6 meters? *

Answer 1

222.2N/m

Step-by-step explanation:

Given parameters:

Elastic potential energy = 4000J

Extension = 6m

Unknown:

Spring coefficient = ?

Solution:

The elastic potential energy is the energy stored within a string.

It is expressed as;

EPE =
`(1)/(2)` k e²

k is the spring constant

e is the extension

4000 =
`(1)/(2)` x k x 6²

8000 = 36k

k = 222.2N/m