Find the force of gravity between Earth (mass = 6.0×1024kg) and the Moon (mass = 7.4×1022kg). The average Earth-Moon distance is 3.8×108m.
Find the force of gravity between Earth (mass = 6.0×1024kg) and the Moon (mass = 7.4×1022kg). The average Earth-Moon distance is 3.8×108m.
F=GmM/r^2
F=[6.67 x 10^-11 x 6 x 10^24 x 7.4 x 10^22] / [3.8 x 10^8]^2
F=205,088,642,659,279,778,393.35 Newtons
F=2.05 x 10^20 Newtons-This is the force of gravity between surface-to-surface. If you want the force between center-to-center, then you have to add the radii of the Earth and the Moon to the distance between them and re-calculate the force.
