Question

What is the acceleration of Earth towards a
spherical body of radius 1m and density same as
that of the Earth and which is near the surface of
the Earth?​

Answer 1

Answer:

g=

R

GM

g=Gρ

3

4

R

πR

3

ρ=

G4πR

2

3g

ρ=

4

3

πGR

2

g