Question

what are dimensions of E=Gm/r^2​

Answer 1

Answer:

Gravitational force acting between two objects of masses m

1

and m

2

separated by distance r, F=

r

2

Gm

1

m

2

⟹ G=

m

1

m

2

Fr

2

Thus dimensional formula of G is

[M]

2

[MLT

−2

][L]

2

⟹ G=M

−1

L

3

T

−2