Four vehicle suspension units contain compression springs. During a test, each spring stores 180 J of elastic potential energy. Each spring remains below its limit of proportionality.
| Suspension unit | Spring constant in N/m\text{N/m}N/m |
|---|---|
| A | 12 000 |
| B | 18 000 |
| C | 24 000 |
| D | 30 000 |
Which suspension unit contains the spring that exerts the greatest force at this stored energy?
Suspension unit B
Suspension unit C
Suspension unit D
Suspension unit A
106 exam-style questions on AQA GCSE Physics 5.3 Forces and elasticity, covering 5.3 Forces and elasticity. Each one has a worked solution and a mark scheme showing where the marks go.