Respuesta :

The formula for calculating the elastic potential energy is expressed as

Elastic potential energy = 1/2kx^2

where

k represents the spring constant

x represents the compression or distance by which the spring was stretched.

From the information given,

Elastic potential energy = 68

x = 6 cm

we would convert 6 cm to m. Recall,

100cm = 1 m

6 cm = 6/100 = 0.06 m

By substituting these values into the formula, we have

68 = 1/2 x k x 0.06^2

68 = 0.0018k

k = 68/0.0018

k = 37777.78 N/m

The spring constant is 37777.78 N/m