Answer:
"Everybody
in the universe attracts every other body with a force which is directly
proportional to the product of their masses and inversely proportional to the
square of the distance between them."
Let us
consider two bodies A and B of masses 
and
which are separated by a
distance r. Then the force of gravitation (F) acting on the two bodies is given
by
and 
Combining (1)
and (2), we get
or 
where G is a
constant known as universal gravitational constant.
Here, if the
masses and of the two bodies are of
1 kg and the distance(r) between them is 1 m, then putting = 1 kg, = 1 kg and r = 1 m in the above
formula, we get
G = F
Thus, the
gravitational constant G is numerically equal to the force of gravitation which
exists between two bodies of unit masses kept at a unit distance from each
other.
You need to login to perform this action.
You will be redirected in
3 sec
