Calculate the force of gravity on a spacecraft 19200 km (3 earth radii) above th

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values of g at the altitude> g (h) = GM/(R+h)^2 g (h) * (R+h)^2 = GM dividing by R^2 g (h) * [(R+h)/R]^2 = GM/R^2 --------------------------------------… GM/R^2 = 9.8 m/s^2 >>>> value on surface of earth -------------------------------------- g (h) * [(R+h)/R]^2 = 9.8 given h = 3R g (h) * [(R + 3R)/R]^2 = 9.8 g (h) * [4]^2 = 9.8 g (h) * [16] = 9.8 g(h) = (9.8)/16 = 0.6125 m/s^2 -------------------------- force of gravity F = m * g(h) = 1800 * 0.6125 = 1102.5 N

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