calculate the force of gravitation due to earth on a ball of 1 kg mass kying on the grround.
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Gravitational force between earth and ball,
GMm/r^2 [Neglecting the radius of ball as it is small]
=6.67×10^-11×6×10^24×1
(6400×10^3)^2
=9.77×10^-3×10^-11×10^29 = 9.77N
(10^10)
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