Physics (AS & A Level) · May / June 2026 · Paper 54 · Question 2
9702
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A student places a steel strip of thickness d and width w between two blocks that are fixed to the bench. A load is added to the strip as shown in Figure 2.1. d L load steel strip blocks bench Figure 2.1 The distance between the blocks and the centre of gravity of the load is L. The load is displaced a small distance and released so that it oscillates. The time t for 20 oscillations is measured. The period T of the oscillations is calculated. The experiment is repeated for steel strips with the same thickness but different widths. It is suggested that T and w are related by the equation E = 16π2ML3 wT 2d 3 where E is the Young modulus of steel and M is the mass of the load. 2 1
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2(a)[1]
2(b)[2]
2(c)(i)[2]
2(c)(ii)[2]
2(c)(iii)[2]
2(d)[1]
2(e)(i)[2]
2(e)(ii)[1]
2(f)[2]
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