The acceleration due to gravity at Earth’s surface is

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

The acceleration due to gravity at Earth’s surface is 9.8 m/s29.8\,\text{m/s}^2. Determine the magnitude of gravitational field intensity at an altitude equal to one Earth radius above the surface (assume Earth to be a uniform sphere). (a) 4.9 m/s24.9\,\text{m/s}^2 (b) 2.45 m/s22.45\,\text{m/s}^2 (c) 1.23 m/s21.23\,\text{m/s}^2 (d) 9.8 m/s29.8\,\text{m/s}^2

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