In one of the printed docunent the unit of universal gravitational constant is given Nm2kg-2.Check its correctness for dimension analysis.

It is correct

Explanation:

Given dimension is:

                            Nm² kg⁻²

To find the dimension of the universal gravitational constant, let us state the law of universal gravitational constant.

"every particle attracts every other particle with a force that is directly proportional to their masses and inversely proportional to the mass between them".

  F =

F is the force

G is the universal gravitation constant

m is the mass

r is the distance between them

Using the dimension;

          N  =

         Nm² = Gkg²

  Unit of G = Nm² kg⁻²

v=ir = 3x15 =45 v

a 2,000 calorie based diet.