The graphs illustrate how a spring’s extension varies with the masses hanging from it, for the spring on planet X and for the spring on planet Y. Which conclusion can be reached from these graphs?
- AIt is not possible to compare the gravitational field strengths on planets X and Y.
- BThe gravitational field strength on planet X is equal to the gravitational field strength on planet Y.
- CThe gravitational field strength on planet X is one third of the gravitational field strength on planet Y.
- DThe gravitational field strength on planet X is three times the gravitational field strength on planet Y.