Calculate the force of gravitation between the earth and the Sun, given that the mass of the earth = 6 × 1024 kg and of the Sun = 2 × 1030 kg. The average distance between the two is 1.5 × 1011 m.

Answers (1)

Mass of the earth, ME =6	imes 10^24kg

Mass of the Sun, MS =2	imes 10^30kg

Distance between the earth and the sun, d=1.5	imes 10^11m

Universal gravitational constant, G=6.67	imes 10^-11N kg^-2 m^2

The force of gravitation between the earth and the Sun would be given as

\F=GfracM_EM_Ed^2\ F=6.67	imes 10^-11	imes frac6	imes 10^24	imes 2	imes 10^30(1.5	imes 10^11)^2\ F=3.56	imes 10^22N

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