The spring constant of a spring is 50 N/m.
The spring is stretched so that its extension is 8.0 cm.
Calculate the elastic potential energy stored in the spring.
Use the equation:
elastic potential energy=0.5×spring constant×(extension)2 \text{elastic potential energy} = 0.5 \times \text{spring constant} \times (\text{extension})^2 elastic potential energy=0.5×spring constant×(extension)223 exam-style questions on Edexcel GCSE Physics 15.1 Forces and springs. Each one has a worked solution and a mark scheme showing where the marks go.