Physics (AS & A Level) · Oct / Nov 2025 · Paper 42 · Question 1

The Earth may be considered as a uniform sphere of radius 6.37 × 106 m. Cambridge is at a point on the Earth’s surface that has a latitude of 52.2° north of the Equator, as shown in Fig. 1.1. 52.2° North Pole South Pole Earth axis Cambridge Equator Fig. 1.1 As the Earth spins on its axis, Cambridge moves in a circle that is parallel to the Equator but with a smaller radius. 6

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