Question

(b) Calculate the magnitude of gravitational force between the earth of
mass 6 x 1024 kg and a 2 kg object on its surface, if radius of earth is
6.4 x 10√ 3km.​

Answer 1

Answer:

19.54 N

Explanation:

F = GMm/R^2

=6.67 ×10^-11 ×6 ×10^24 ×2 / (6400×1000)^2 N

=(8004 ×10^11)/(4096 ×10^10) N

=(8004/4096) × 10 N

=1.954 × 10 N

=19.54 N