Page 30 - Force 10

The most important question for SEE

Universal gravitational constant-G

Definition

From the previous slide , The universal gravitational constant can be defined as the force

of gravitation that exist between two bodies of unit masses kept at unit distance

from their centres. It is denoted by Capital “G” . It’s Value is constant all over the

2
2
-11
universe which is Numerically equal to 6.67x10 Nm /Kg .

S.I unit

2
1
From the previous slide , F=
2
2 × 2 2
here, G= = =
2 × 2
1
2
2
Thus, SI unit of ‘G’ is Nm /Kg .

BE serious , this is important.