Question

2. The earth and the moon are attracted to each other by gravitational force. The earth attracts the
moon with a force that is:

1) more than exerted by the moon
2) same as that exerted by the moon
3) less than that exerted by the moon
4) not related to that exerted by the moon​

Answer 1

Answer:

less than that of exerted by the moon

Answer 2

Answer:

Let m and M be the mass of moon and earth respectively which are separated by a distance r

Force of attraction that earth exert on moon,

Fe=GMm/r²

Force of attraction that moon exert on earth,

Fm=GmM/r²

Thus earth attracts the moon with same force by which moon attracts the earth.

Also the gravitational force is an internal force of attraction between the two bodies, thus they have to be equal.