PhysicsMedium159×since 2002Q7161The weight of a body at the surface of earth is 18 N. The weight of the body at an altitude of 3200 km above the earth's surface is (given, radius of earth Re=6400 km\mathrm{R_e=6400~km}Re=6400 km) :A9.8 NB4.9 NC19.6 ND8 NCheck answerSkip