Physics (AS & A Level) · Oct / Nov 2022 · Paper 11 · Question 20

An unstretched spring has a length of 2.0 cm. The spring is then stretched within its limit of proportionality by a tensile force of 1.5 N so that the elastic potential energy stored in the spring is 0.045 J. What is the stretched length of the spring?

1. A3.0 cm
2. B5.0 cm
3. C6.0 cm
4. D8.0 cm

As printed in the paper