Question

Pushing on the pump of a soap dispenser
compresses a small spring. When the spring is
compressed 0.50 cm , its potential energy is
0.0040 J. What is the force constant of the spring?
What compression is required for the spring potential energy to equal 0.0094J

Answer 1

Explanation:

EE = ½ kx²

0.0040 J = ½ k (0.0050 m)²

k = 320 N/m

EE = ½ kx²

0.0094 J = ½ (320 N/m) x²

x = 0.0077 m

x = 0.77 cm