Question

Given that mass of moon is 7.34 x10 22 kg and the moon revolve around earth in a circular orbit of radius 3,84,400 km in about 27.3 days, the gravitational force on moon due to earth is about

Answer 1

Answer:

2.025⋅1020,0.002759

Explanation:

a)F=G(m1)(m2)r2

F=(6.67300×10−11)(7.34⋅1022kg)5.97⋅1024kg(3.8⋅108m)2=2.025⋅1020

b) The field is just G(m)/r^2 

(6.67300⋅10−11)5.97⋅1024kg(3.8⋅108m)2=0.002759