Physics (AS & A Level) · May / June 2017 · Paper 23 · Question 4

A spring is supported so that it hangs vertically, as shown in Fig. 4.1. spring mass M Fig. 4.1 Different masses are attached to the lower end of the spring. The extension x of the spring is measured for each mass M. The variation with x of M is shown in Fig. 4.2. 0 0 50 100 150 40 80 120 160 x / mm M / g 200 Fig. 4.2

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