Physics · May / June 2020 · Paper 41 · Question 2
0625
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Fig. 2.1 is the extension–load graph for a light spring S. 0 0 2 4 6 8 10 10 20 30 load / N extension / cm Fig. 2.1
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2(a)[1]
0 (N) AND 8.0 N
2(b)[2]
(k =) F / x OR 8.0 / 0.15
53 N / m OR 0.53 N / cm
2(c)(i)[1]
elastic potential (energy)
2(c)(ii)[1]
15 cm
2(c)(iii)[1]
7.5 cm OR 2(c)(ii) / 2
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