A spring has a potential energy of 10 J when compressed by 0.2 m. What is its spring constant?
Q1. A spring has a potential energy of 10 J when compressed by 0.2 m. What is its spring constant?
Answer: 500 N/m
Explanation: 1/2 kx² = 10, so k = 2*10 / 0.2² = 500 N/m, using the formula for potential energy.